// Numbas version: exam_results_page_options
{"name": "Huiswerk natuurkunde week 37 (test 0)", "metadata": {"description": "", "licence": "None specified"}, "duration": 0, "percentPass": "0", "showQuestionGroupNames": false, "showstudentname": true, "question_groups": [{"name": "Group", "pickingStrategy": "all-ordered", "pickQuestions": 1, "questionNames": ["", "", ""], "questions": [{"name": "Spanningsverschil, stroomsterkte, weerstand en de wet van Ohm", "extensions": [], "custom_part_types": [], "resources": [["question-resources/basisOhm1.png", "/srv/numbas/media/question-resources/basisOhm1.png"]], "navigation": {"allowregen": true, "showfrontpage": false, "preventleave": false, "typeendtoleave": false}, "contributors": [{"name": "Mart Greuell", "profile_url": "https://numbas.mathcentre.ac.uk/accounts/profile/3806/"}], "tags": [], "metadata": {"description": "", "licence": "None specified"}, "statement": "<p>Onderstaande vragen gaan over de belangrijke grootheden spanning ($U$) met eenheid volt (V), stroomsterkte ($I$) met eenheid amp&egrave;re (A) en weerstand ($R$) met eenheid ohm ($\\Omega$). Het verband tussen deze grootheden wordt gegeven door de wet van Ohm: $U=IR$</p>\n<p></p>\n<p>Met deze vragen leer je:</p>\n<p>1) wat je je voor moet stellen bij de grootheden $U$, $I$, en $R$.</p>\n<p>2) hoe je de wet van ohm toe kunt passen in schakelingen met &eacute;&eacute;n stroomkring, &eacute;&eacute;n weerstand en een spanningsbron.</p>", "advice": "", "rulesets": {}, "variables": {"U2": {"name": "U2", "group": "Ungrouped variables", "definition": "random(5 .. 20#0.5)", "description": "", "templateType": "randrange"}, "I0": {"name": "I0", "group": "Ungrouped variables", "definition": "random(0.1 .. 0.5#0.05)", "description": "", "templateType": "randrange"}, "R1": {"name": "R1", "group": "Ungrouped variables", "definition": "random(500 .. 2000#1)", "description": "", "templateType": "randrange"}, "R2": {"name": "R2", "group": "Ungrouped variables", "definition": "random(10 .. 2000#1)", "description": "", "templateType": "randrange"}, "U3": {"name": "U3", "group": "Ungrouped variables", "definition": "random(5 .. 20#0.5)", "description": "", "templateType": "randrange"}, "I3": {"name": "I3", "group": "Ungrouped variables", "definition": "random(0.1 .. 0.5#0.05)", "description": "", "templateType": "randrange"}}, "variablesTest": {"condition": "", "maxRuns": 100}, "ungrouped_variables": ["U2", "I0", "R1", "R2", "U3", "I3"], "variable_groups": [], "functions": {}, "preamble": {"js": "", "css": ""}, "parts": [{"type": "1_n_2", "useCustomName": false, "customName": "", "marks": 0, "scripts": {}, "customMarkingAlgorithm": "", "extendBaseMarkingAlgorithm": true, "unitTests": [], "showCorrectAnswer": true, "showFeedbackIcon": true, "variableReplacements": [], "variableReplacementStrategy": "originalfirst", "nextParts": [], "suggestGoingBack": false, "adaptiveMarkingPenalty": 0, "exploreObjective": null, "prompt": "<p>Wat is een correcte beschrijving van de grootheid stroomsterkte $I$?</p>", "minMarks": 0, "maxMarks": 0, "shuffleChoices": true, "displayType": "radiogroup", "displayColumns": 0, "showCellAnswerState": true, "choices": ["De hoeveelheid lading (in de vorm van geladen deeltjes) die per tijdseenheid passeert. Stroomsterkte is dus de stroming van geladen deeltjes.", "Het verschil in energie wat geladen deeltjes aan de ene kant van het spanningsverschil t.o.v. de andere kant hebben.", "De mate waarin&nbsp;een materiaal&nbsp;de doorgang van elektrische&nbsp;stroom door zichzelf belemmert.", "De hoeveelheid&nbsp;warmte die in een schakeling ontstaat doordat er een spanning over de schakeling wordt aangebracht."], "matrix": ["5", 0, 0, 0], "distractors": ["Correct!", "Fout", "Fout", "Fout"]}, {"type": "1_n_2", "useCustomName": false, "customName": "", "marks": 0, "scripts": {}, "customMarkingAlgorithm": "", "extendBaseMarkingAlgorithm": true, "unitTests": [], "showCorrectAnswer": true, "showFeedbackIcon": true, "variableReplacements": [], "variableReplacementStrategy": "originalfirst", "nextParts": [], "suggestGoingBack": false, "adaptiveMarkingPenalty": 0, "exploreObjective": null, "prompt": "<p>Wat is een goede omschrijving van de grootheid spanningsverschil ($U$)?</p>", "minMarks": 0, "maxMarks": 0, "shuffleChoices": true, "displayType": "radiogroup", "displayColumns": 0, "showCellAnswerState": true, "choices": ["Het verschil in energie wat geladen deeltjes aan de ene kant van het spanningsverschil t.o.v. de andere kant hebben.", "De mate waarin&nbsp;een materiaal&nbsp;de doorgang van elektrische&nbsp;stroom door zichzelf belemmert.", "De hoeveelheid energie die zich in de totale schakeling bevindt.", "De hoeveelheid lading (in de vorm van geladen deeltjes) die per tijdseenheid passeert. Stroomsterkte is dus de stroming van geladen deeltjes.Het spanningsverschil is het totale verschil in lading tussen twee punten."], "matrix": ["5", 0, 0, 0], "distractors": ["Correct!", "Fout", "Fout", "Fout"]}, {"type": "1_n_2", "useCustomName": false, "customName": "", "marks": 0, "scripts": {}, "customMarkingAlgorithm": "", "extendBaseMarkingAlgorithm": true, "unitTests": [], "showCorrectAnswer": true, "showFeedbackIcon": true, "variableReplacements": [], "variableReplacementStrategy": "originalfirst", "nextParts": [], "suggestGoingBack": false, "adaptiveMarkingPenalty": 0, "exploreObjective": null, "prompt": "<p>Wat is een goede omschrijving van de grootheid weerstand ($R$)?</p>", "minMarks": 0, "maxMarks": 0, "shuffleChoices": true, "displayType": "radiogroup", "displayColumns": 0, "showCellAnswerState": true, "choices": ["De mate waarin&nbsp;een materiaal&nbsp;de doorgang van elektrische&nbsp;stroom door zichzelf belemmert.", "De hoeveelheid lading (in de vorm van geladen deeltjes) die per tijdseenheid passeert. Stroomsterkte is dus de stroming van geladen deeltjes.", "Het verschil in energie wat geladen deeltjes aan de ene kant van het spanningsverschil t.o.v. de andere kant hebben.", "De hoeveelheid energie die geladen deeltjes hebben t.o.v. een ander punt in de schakeling."], "matrix": ["5", 0, 0, 0], "distractors": ["Correct!", "Fout", "Fout", "Fout"]}, {"type": "numberentry", "useCustomName": false, "customName": "", "marks": "5", "scripts": {}, "customMarkingAlgorithm": "", "extendBaseMarkingAlgorithm": true, "unitTests": [], "showCorrectAnswer": true, "showFeedbackIcon": true, "variableReplacements": [], "variableReplacementStrategy": "originalfirst", "nextParts": [], "suggestGoingBack": false, "adaptiveMarkingPenalty": 0, "exploreObjective": null, "prompt": "<p>Bekijk deze schakeling. $I$ en $R$ zijn gegeven. Bereken de spanning $U$ die de bron levert.</p>\n<p><img src=\"resources/question-resources/basisOhm1.png\" width=\"200\" height=\"172\"/></p>\n<p>$I$ = {I0} A</p>\n<p>$R$ = {R1} $\\Omega$</p>\n<p><strong>Geef je antwoord in volt (V).</strong></p>", "minValue": "{I0*R1}", "maxValue": "{I0*R1}", "correctAnswerFraction": false, "allowFractions": false, "mustBeReduced": false, "mustBeReducedPC": 0, "precisionType": "dp", "precision": "2", "precisionPartialCredit": "100", "precisionMessage": "You have not given your answer to the correct precision.", "strictPrecision": false, "showPrecisionHint": true, "notationStyles": ["plain", "plain-eu"], "correctAnswerStyle": "plain-eu"}, {"type": "numberentry", "useCustomName": false, "customName": "", "marks": "5", "scripts": {}, "customMarkingAlgorithm": "", "extendBaseMarkingAlgorithm": true, "unitTests": [], "showCorrectAnswer": true, "showFeedbackIcon": true, "variableReplacements": [], "variableReplacementStrategy": "originalfirst", "nextParts": [], "suggestGoingBack": false, "adaptiveMarkingPenalty": 0, "exploreObjective": null, "prompt": "<p>Bekijk deze schakeling. $U$ en $R$ zijn gegeven. Bereken de stroomsterkte $I$.</p>\n<p><img src=\"resources/question-resources/basisOhm1.png\" width=\"200\" height=\"172\"/></p>\n<p>$U$ = {U2} V</p>\n<p>$R$ = {R2} $\\Omega$</p>\n<p><strong>Geef je antwoord in amp&egrave;re (A)</strong></p>", "minValue": "{U2/R2}", "maxValue": "{U2/R2}", "correctAnswerFraction": false, "allowFractions": false, "mustBeReduced": false, "mustBeReducedPC": 0, "precisionType": "dp", "precision": "2", "precisionPartialCredit": "100", "precisionMessage": "You have not given your answer to the correct precision.", "strictPrecision": false, "showPrecisionHint": true, "notationStyles": ["plain", "plain-eu"], "correctAnswerStyle": "plain-eu"}, {"type": "numberentry", "useCustomName": false, "customName": "", "marks": "5", "scripts": {}, "customMarkingAlgorithm": "", "extendBaseMarkingAlgorithm": true, "unitTests": [], "showCorrectAnswer": true, "showFeedbackIcon": true, "variableReplacements": [], "variableReplacementStrategy": "originalfirst", "nextParts": [], "suggestGoingBack": false, "adaptiveMarkingPenalty": 0, "exploreObjective": null, "prompt": "<p>Bekijk deze schakeling. $I$ en $U$ zijn gegeven. Bereken de weerstand $R$.</p>\n<p><img src=\"resources/question-resources/basisOhm1.png\" width=\"200\" height=\"172\"/></p>\n<p>$I$ = {I3} A</p>\n<p>$U$ = {U3}&nbsp;V</p>\n<p><strong>Geef je antwoord in ohm ($\\Omega$)</strong></p>", "minValue": "{U3/I3}", "maxValue": "{U3/I3}", "correctAnswerFraction": false, "allowFractions": false, "mustBeReduced": false, "mustBeReducedPC": 0, "precisionType": "dp", "precision": "2", "precisionPartialCredit": "100", "precisionMessage": "You have not given your answer to the correct precision.", "strictPrecision": false, "showPrecisionHint": true, "notationStyles": ["plain", "plain-eu"], "correctAnswerStyle": "plain-eu"}], "partsMode": "all", "maxMarks": 0, "objectives": [], "penalties": [], "objectiveVisibility": "always", "penaltyVisibility": "always"}, {"name": "vervangingsweerstanden van serie/parallelschakelingen", "extensions": [], "custom_part_types": [], "resources": [["question-resources/schakeling1.png", "/srv/numbas/media/question-resources/schakeling1.png"], ["question-resources/schakeling1_8kNPIRm.png", "/srv/numbas/media/question-resources/schakeling1_8kNPIRm.png"], ["question-resources/schakeling2.png", "/srv/numbas/media/question-resources/schakeling2.png"], ["question-resources/schakeling3.png", "/srv/numbas/media/question-resources/schakeling3.png"], ["question-resources/schakeling4.png", "/srv/numbas/media/question-resources/schakeling4.png"], ["question-resources/schakeling5.png", "/srv/numbas/media/question-resources/schakeling5.png"], ["question-resources/schakeling6.png", "/srv/numbas/media/question-resources/schakeling6.png"], ["question-resources/schakeling7.png", "/srv/numbas/media/question-resources/schakeling7.png"], ["question-resources/schakeling7_v6zJynS.png", "/srv/numbas/media/question-resources/schakeling7_v6zJynS.png"]], "navigation": {"allowregen": true, "showfrontpage": false, "preventleave": false, "typeendtoleave": false}, "contributors": [{"name": "Mart Greuell", "profile_url": "https://numbas.mathcentre.ac.uk/accounts/profile/3806/"}], "tags": [], "metadata": {"description": "", "licence": "None specified"}, "statement": "<p>Bereken steeds de weerstand tussen de punten A en B&nbsp;in de schakelingen uit onderstaande figuren. Gebruik de volgende vergelijkingen:</p>\n<p>vervangingsweerstand van een serieschakeling: $R_s = R_1 + R_2 + ... + R_n$</p>\n<p>vervangingsweerstand van een parallelschakeling: $\\frac{1}{R_s}=\\frac{1}{R_1}+\\frac{1}{R_2}+...+\\frac{1}{R_n}$</p>\n<p></p>\n<p>Met deze vragen leer je:</p>\n<p>-hoe je de vervangingsweerstand $R_s$ van een schakeling met meerdere weerstanden berekent.</p>\n<p>-hoe je de stroomsterkte $I$ en de spanning $U$ in een schakeling met meerdere weerstanden berekent.</p>", "advice": "", "rulesets": {}, "variables": {"R_1": {"name": "R_1", "group": "Ungrouped variables", "definition": "random(5 .. 200#5)", "description": "", "templateType": "randrange"}, "R_2": {"name": "R_2", "group": "Ungrouped variables", "definition": "random(5 .. 200#5)", "description": "", "templateType": "randrange"}, "R_3": {"name": "R_3", "group": "Ungrouped variables", "definition": "random(5 .. 200#5)", "description": "", "templateType": "randrange"}, "R_4": {"name": "R_4", "group": "Ungrouped variables", "definition": "random(5 .. 200#5)", "description": "", "templateType": "randrange"}, "R_5": {"name": "R_5", "group": "Ungrouped variables", "definition": "random(5 .. 200#5)", "description": "", "templateType": "randrange"}, "I_1": {"name": "I_1", "group": "Ungrouped variables", "definition": "random(0.1 .. 0.5#0.05)", "description": "", "templateType": "randrange"}, "U_1": {"name": "U_1", "group": "Ungrouped variables", "definition": "random(5 .. 25#1)", "description": "", "templateType": "randrange"}, "R1": {"name": "R1", "group": "Ungrouped variables", "definition": "random(100 .. 2000#100)", "description": "", "templateType": "randrange"}, "R2": {"name": "R2", "group": "Ungrouped variables", "definition": "random(100 .. 2000#100)", "description": "", "templateType": "randrange"}, "R3": {"name": "R3", "group": "Ungrouped variables", "definition": "random(100 .. 2000#100)", "description": "", "templateType": "randrange"}, "R4": {"name": "R4", "group": "Ungrouped variables", "definition": "random(100 .. 2000#100)", "description": "", "templateType": "randrange"}, "R5": {"name": "R5", "group": "Ungrouped variables", "definition": "random(100 .. 2000#100)", "description": "", "templateType": "randrange"}, "R6": {"name": "R6", "group": "Ungrouped variables", "definition": "random(100 .. 2000#100)", "description": "", "templateType": "randrange"}, "R7": {"name": "R7", "group": "Ungrouped variables", "definition": "random(100 .. 2000#100)", "description": "", "templateType": "randrange"}, "R8": {"name": "R8", "group": "Ungrouped variables", "definition": "random(100 .. 2000#100)", "description": "", "templateType": "randrange"}}, "variablesTest": {"condition": "", "maxRuns": 100}, "ungrouped_variables": ["R_1", "R_2", "R_3", "R_4", "R_5", "I_1", "U_1", "R1", "R2", "R3", "R4", "R5", "R6", "R7", "R8"], "variable_groups": [], "functions": {}, "preamble": {"js": "", "css": ""}, "parts": [{"type": "numberentry", "useCustomName": false, "customName": "", "marks": "10", "scripts": {}, "customMarkingAlgorithm": "", "extendBaseMarkingAlgorithm": true, "unitTests": [], "showCorrectAnswer": true, "showFeedbackIcon": true, "variableReplacements": [], "variableReplacementStrategy": "originalfirst", "nextParts": [], "suggestGoingBack": false, "adaptiveMarkingPenalty": 0, "exploreObjective": null, "prompt": "<p>Wat is de vervangingsweerstand $R_s$ van deze schakeling tussen punt $A$ en $B$?&nbsp;</p>\n<p><img src=\"resources/question-resources/schakeling1_8kNPIRm.png\"/></p>\n<p>$R_1$ = {R_1}&nbsp;$\\Omega$</p>\n<p>$R_2$ = {R_2}&nbsp;$\\Omega$</p>\n<p>$R_3$ = {R_3}&nbsp;$\\Omega$</p>\n<p><strong>Geef je antwoord in $\\Omega$.&nbsp;</strong></p>\n<p></p>", "minValue": "{R_1+R_2*R_3/(R_2+R_3)}", "maxValue": "{R_1+R_2*R_3/(R_2+R_3)}", "correctAnswerFraction": false, "allowFractions": false, "mustBeReduced": false, "mustBeReducedPC": 0, "precisionType": "dp", "precision": "2", "precisionPartialCredit": "100", "precisionMessage": "You have not given your answer to the correct precision.", "strictPrecision": false, "showPrecisionHint": true, "notationStyles": ["plain", "plain-eu"], "correctAnswerStyle": "plain-eu"}, {"type": "numberentry", "useCustomName": false, "customName": "", "marks": "10", "scripts": {}, "customMarkingAlgorithm": "", "extendBaseMarkingAlgorithm": true, "unitTests": [], "showCorrectAnswer": true, "showFeedbackIcon": true, "variableReplacements": [], "variableReplacementStrategy": "originalfirst", "nextParts": [], "suggestGoingBack": false, "adaptiveMarkingPenalty": 0, "exploreObjective": null, "prompt": "<p>Wat is de vervangingsweerstand $R_s$ van deze schakeling tussen punt $A$ en $B$?</p>\n<p><img src=\"resources/question-resources/schakeling2.png\"/></p>\n<p>$R_1$ = {R_1}&nbsp;$\\Omega$</p>\n<p>$R_2$ = {R_2}&nbsp;$\\Omega$</p>\n<p>$R_3$ = {R_3}&nbsp;$\\Omega$</p>\n<p>$R_4$ = {R_4}&nbsp;$\\Omega$</p>\n<p>$R_5$ = {R_5}&nbsp;$\\Omega$</p>\n<p><strong> Geef je antwoord in $\\Omega$.&nbsp;</strong></p>", "minValue": "{R_1+R_2+R_3*R_4*R_5/(R_3*R_4+R_4*R_5+R_3*R_5)}", "maxValue": "{R_1+R_2+R_3*R_4*R_5/(R_3*R_4+R_4*R_5+R_3*R_5)}", "correctAnswerFraction": false, "allowFractions": false, "mustBeReduced": false, "mustBeReducedPC": 0, "precisionType": "dp", "precision": "2", "precisionPartialCredit": "100", "precisionMessage": "You have not given your answer to the correct precision.", "strictPrecision": false, "showPrecisionHint": true, "notationStyles": ["plain", "plain-eu"], "correctAnswerStyle": "plain-eu"}, {"type": "numberentry", "useCustomName": false, "customName": "", "marks": "10", "scripts": {}, "customMarkingAlgorithm": "", "extendBaseMarkingAlgorithm": true, "unitTests": [], "showCorrectAnswer": true, "showFeedbackIcon": true, "variableReplacements": [], "variableReplacementStrategy": "originalfirst", "nextParts": [], "suggestGoingBack": false, "adaptiveMarkingPenalty": 0, "exploreObjective": null, "prompt": "<p>Wat is de vervangingsweerstand $R_s$ van deze schakeling tussen punt $A$ en $B$?&nbsp;</p>\n<p><img src=\"resources/question-resources/schakeling3.png\"/></p>\n<p>$R_1$ = {R_1}&nbsp;$\\Omega$</p>\n<p>$R_2$ = {R_2}&nbsp;$\\Omega$</p>\n<p>$R_3$ = {R_3}&nbsp;$\\Omega$</p>\n<p>$R_4$ = {R_4}&nbsp;$\\Omega$</p>\n<p><strong>Geef je antwoord in $\\Omega$.</strong></p>", "minValue": "{R_1+R_4*(R_2+R_3)/(R_4+R_3+R_2)}", "maxValue": "{R_1+R_4*(R_2+R_3)/(R_4+R_3+R_2)}", "correctAnswerFraction": false, "allowFractions": false, "mustBeReduced": false, "mustBeReducedPC": 0, "precisionType": "dp", "precision": "2", "precisionPartialCredit": "100", "precisionMessage": "You have not given your answer to the correct precision.", "strictPrecision": false, "showPrecisionHint": true, "notationStyles": ["plain", "plain-eu"], "correctAnswerStyle": "plain-eu"}, {"type": "numberentry", "useCustomName": false, "customName": "", "marks": "10", "scripts": {}, "customMarkingAlgorithm": "", "extendBaseMarkingAlgorithm": true, "unitTests": [], "showCorrectAnswer": true, "showFeedbackIcon": true, "variableReplacements": [], "variableReplacementStrategy": "originalfirst", "nextParts": [], "suggestGoingBack": false, "adaptiveMarkingPenalty": 0, "exploreObjective": null, "prompt": "<p>Wat is de vervangingsweerstand $R_s$ van deze schakeling tussen punt $A$ en $B$?&nbsp;</p>\n<p><img src=\"resources/question-resources/schakeling4.png\"/></p>\n<p>$R_1$ = {R_1}&nbsp;$\\Omega$</p>\n<p>$R_2$ = {R_2}&nbsp;$\\Omega$</p>\n<p>$R_3$ = {R_3}&nbsp;$\\Omega$</p>\n<p>$R_4$ = {R_4}&nbsp;$\\Omega$</p>\n<p>$R_5$ = {R_5}&nbsp;$\\Omega$</p>\n<p><strong>Geef je antwoord in $\\Omega$.&nbsp;</strong></p>", "minValue": "{1/(1/(R_1+R_2)+1/R_3+1/(R_4+R_5))}", "maxValue": "{1/(1/(R_1+R_2)+1/R_3+1/(R_4+R_5))}", "correctAnswerFraction": false, "allowFractions": false, "mustBeReduced": false, "mustBeReducedPC": 0, "precisionType": "dp", "precision": "2", "precisionPartialCredit": "100", "precisionMessage": "You have not given your answer to the correct precision.", "strictPrecision": false, "showPrecisionHint": true, "notationStyles": ["plain", "plain-eu"], "correctAnswerStyle": "plain-eu"}, {"type": "numberentry", "useCustomName": false, "customName": "", "marks": "10", "scripts": {}, "customMarkingAlgorithm": "", "extendBaseMarkingAlgorithm": true, "unitTests": [], "showCorrectAnswer": true, "showFeedbackIcon": true, "variableReplacements": [], "variableReplacementStrategy": "originalfirst", "nextParts": [], "suggestGoingBack": false, "adaptiveMarkingPenalty": 0, "exploreObjective": null, "prompt": "<p>In onderstaande afbeelding zijn de waarden van de weerstanden en de stroomsterkte gegeven. Wat is de spanning $U$ tussen punt $A$ en $B$?</p>\n<p><img src=\"resources/question-resources/schakeling5.png\" width=\"251\" height=\"196\"/></p>\n<p>$R_1$ = {R_1} $\\Omega$</p>\n<p>$R_2$ = {R_2}&nbsp;$\\Omega$</p>\n<p>$R_3$ = {R_3}&nbsp;$\\Omega$</p>\n<p>$R_4$ = {R_4}&nbsp;$\\Omega$</p>\n<p>$I$ = {I_1} A</p>\n<p><strong>Geef je antwoord in V.</strong></p>", "minValue": "{(1/(1/R_1+1/R_2+1/R_3)+R_4)*I_1}", "maxValue": "{(1/(1/R_1+1/R_2+1/R_3)+R_4)*I_1}", "correctAnswerFraction": false, "allowFractions": false, "mustBeReduced": false, "mustBeReducedPC": 0, "precisionType": "dp", "precision": "2", "precisionPartialCredit": "100", "precisionMessage": "You have not given your answer to the correct precision.", "strictPrecision": false, "showPrecisionHint": true, "notationStyles": ["plain", "plain-eu"], "correctAnswerStyle": "plain-eu"}, {"type": "numberentry", "useCustomName": false, "customName": "", "marks": "10", "scripts": {}, "customMarkingAlgorithm": "", "extendBaseMarkingAlgorithm": true, "unitTests": [], "showCorrectAnswer": true, "showFeedbackIcon": true, "variableReplacements": [], "variableReplacementStrategy": "originalfirst", "nextParts": [], "suggestGoingBack": false, "adaptiveMarkingPenalty": 0, "exploreObjective": null, "prompt": "<p>In onderstaande afbeelding zijn de waarden van de weerstanden en de&nbsp;bronspanning gegeven. Wat is de&nbsp;stroomsterkte $I$?&nbsp;</p>\n<p><img src=\"resources/question-resources/schakeling6.png\" width=\"356\" height=\"208\"/></p>\n<p>$R_1$ = {R_1} $\\Omega$</p>\n<p>$R_2$ = {R_2}&nbsp;$\\Omega$</p>\n<p>$R_3$ = {R_3}&nbsp;$\\Omega$</p>\n<p>$R_4$ = {R_4}&nbsp;$\\Omega$</p>\n<p>$U$ = {U_1} V</p>\n<p><strong>Geef je antwoord in A.&nbsp;</strong></p>", "minValue": "{U_1/(R_1*R_2/(R_1+R_2)+R_3*R_4/(R_3+R_4))}", "maxValue": "{U_1/(R_1*R_2/(R_1+R_2)+R_3*R_4/(R_3+R_4))}", "correctAnswerFraction": false, "allowFractions": false, "mustBeReduced": false, "mustBeReducedPC": 0, "precisionType": "dp", "precision": "2", "precisionPartialCredit": "100", "precisionMessage": "You have not given your answer to the correct precision.", "strictPrecision": false, "showPrecisionHint": true, "notationStyles": ["plain", "plain-eu"], "correctAnswerStyle": "plain-eu"}, {"type": "numberentry", "useCustomName": false, "customName": "", "marks": "10", "scripts": {}, "customMarkingAlgorithm": "", "extendBaseMarkingAlgorithm": true, "unitTests": [], "showCorrectAnswer": true, "showFeedbackIcon": true, "variableReplacements": [], "variableReplacementStrategy": "originalfirst", "nextParts": [], "suggestGoingBack": false, "adaptiveMarkingPenalty": 0, "exploreObjective": null, "prompt": "<p>Speciaal voor de expert: een extra uitdagende opgave. Je hoeft deze opgave niet te kunnen, maar hij is wel mogelijk met de kennis die je nu hebt. Deze opgave mag je overslaan als je er niet uit komt.</p>\n<p>In onderstaande afbeelding zijn de waarden van de weerstanden en de&nbsp;bronspanning gegeven. Wat is de&nbsp;stroomsterkte $I$?&nbsp;</p>\n<p><img src=\"resources/question-resources/schakeling7_v6zJynS.png\" width=\"447\" height=\"222\"/></p>\n<p>$R_1$ = {R1} $\\Omega$</p>\n<p>$R_2$ = {R2}&nbsp;$\\Omega$</p>\n<p>$R_3$ = {R3}&nbsp;$\\Omega$</p>\n<p>$R_4$ = {R4}&nbsp;$\\Omega$</p>\n<p>$R_5$ = {R5} $\\Omega$</p>\n<p>$R_6$ = {R6}&nbsp;$\\Omega$</p>\n<p>$R_7$ = {R7}&nbsp;$\\Omega$</p>\n<p>$R_8$ = {R8}&nbsp;$\\Omega$</p>\n<p>$U_{bron}$ = 40 V</p>\n<p><strong>Geef je antwoord in A.&nbsp;</strong></p>", "minValue": "{40/(R3+1/(1/R2+1/(R1+(1/(1/R4+1/(R5+1/(1/R6+1/(R7+R8))))))))}", "maxValue": "{40/(R3+1/(1/R2+1/(R1+(1/(1/R4+1/(R5+1/(1/R6+1/(R7+R8))))))))}", "correctAnswerFraction": false, "allowFractions": false, "mustBeReduced": false, "mustBeReducedPC": 0, "precisionType": "dp", "precision": "2", "precisionPartialCredit": "100", "precisionMessage": "You have not given your answer to the correct precision.", "strictPrecision": false, "showPrecisionHint": true, "notationStyles": ["plain", "plain-eu"], "correctAnswerStyle": "plain-eu"}], "partsMode": "all", "maxMarks": 0, "objectives": [], "penalties": [], "objectiveVisibility": "always", "penaltyVisibility": "always"}, {"name": "Stroomsterktes, spanningen, weerstanden en hun eenheden", "extensions": [], "custom_part_types": [], "resources": [["question-resources/schakeling1_9TnrvCq.png", "/srv/numbas/media/question-resources/schakeling1_9TnrvCq.png"], ["question-resources/basisOhm1_atsjw91.png", "/srv/numbas/media/question-resources/basisOhm1_atsjw91.png"], ["question-resources/schakeling5_eVzJ79u.png", "/srv/numbas/media/question-resources/schakeling5_eVzJ79u.png"]], "navigation": {"allowregen": true, "showfrontpage": false, "preventleave": false, "typeendtoleave": false}, "contributors": [{"name": "Mart Greuell", "profile_url": "https://numbas.mathcentre.ac.uk/accounts/profile/3806/"}], "tags": [], "metadata": {"description": "", "licence": "None specified"}, "statement": "<p>Bij deze opgave wordt je weer gevraagd om stroomsterktes, weerstanden en spanningen te berekenen, maar moet je rekening houden met de juiste voorvoegsels van de eenheden die bij de grootheden horen. Als je niet meer weet wat de voorvoegsels betekenen, kun je dit op internet opzoeken.</p>\n<p>Met deze opgave leer je:</p>\n<p>-de voorvoegsels nano (n), micro ($\\mu$) milli (m),&nbsp;kilo (k), mega (M) en giga (G) gebruiken.</p>", "advice": "", "rulesets": {}, "variables": {"kR1": {"name": "kR1", "group": "Ungrouped variables", "definition": "random(0.1 .. 1#0.1)", "description": "", "templateType": "randrange"}, "mR2": {"name": "mR2", "group": "Ungrouped variables", "definition": "random(10000 .. 1000000#1000)", "description": "", "templateType": "randrange"}, "R3": {"name": "R3", "group": "Ungrouped variables", "definition": "random(1 .. 100#1)", "description": "", "templateType": "randrange"}, "nI1": {"name": "nI1", "group": "Ungrouped variables", "definition": "random(1000 .. 10000#1000)", "description": "", "templateType": "randrange"}, "GR1": {"name": "GR1", "group": "Ungrouped variables", "definition": "random(0.1 .. 1#0.1)", "description": "", "templateType": "randrange"}, "GR2": {"name": "GR2", "group": "Ungrouped variables", "definition": "random(0.1 .. 1#0.1)", "description": "", "templateType": "randrange"}, "GR3": {"name": "GR3", "group": "Ungrouped variables", "definition": "random(0.1 .. 1#0.1)", "description": "", "templateType": "randrange"}, "GR4": {"name": "GR4", "group": "Ungrouped variables", "definition": "random(0.1 .. 1#0.1)", "description": "", "templateType": "randrange"}, "muI1": {"name": "muI1", "group": "Ungrouped variables", "definition": "random(1000 .. 10000#1000)", "description": "", "templateType": "randrange"}}, "variablesTest": {"condition": "", "maxRuns": 100}, "ungrouped_variables": ["kR1", "mR2", "R3", "nI1", "GR1", "GR2", "GR3", "GR4", "muI1"], "variable_groups": [], "functions": {}, "preamble": {"js": "", "css": ""}, "parts": [{"type": "numberentry", "useCustomName": false, "customName": "", "marks": "10", "scripts": {}, "customMarkingAlgorithm": "", "extendBaseMarkingAlgorithm": true, "unitTests": [], "showCorrectAnswer": true, "showFeedbackIcon": true, "variableReplacements": [], "variableReplacementStrategy": "originalfirst", "nextParts": [], "suggestGoingBack": false, "adaptiveMarkingPenalty": 0, "exploreObjective": null, "prompt": "<p>Bereken de vervangingsweerstand $R_s$ tussen punt $A$ en $B$ in onderstaande afbeelding.&nbsp;</p>\n<p><img src=\"resources/question-resources/schakeling1_9TnrvCq.png\"/></p>\n<p>$R_1$ = {kR1} k$\\Omega$</p>\n<p>$R_2$ = {mR2} m$\\Omega$</p>\n<p>$R_3$ = {R3} $\\Omega$</p>\n<p><strong>Geef je antwoord in $\\Omega$.</strong>&nbsp;</p>", "minValue": "{kR1*10^3+mR2*10^(-3)*R3/(mR2*10^(-3)+R3)}", "maxValue": "{kR1*10^3+mR2*10^(-3)*R3/(mR2*10^(-3)+R3)}", "correctAnswerFraction": false, "allowFractions": false, "mustBeReduced": false, "mustBeReducedPC": 0, "precisionType": "dp", "precision": "2", "precisionPartialCredit": "100", "precisionMessage": "You have not given your answer to the correct precision.", "strictPrecision": false, "showPrecisionHint": true, "notationStyles": ["plain", "plain-eu"], "correctAnswerStyle": "plain-eu"}, {"type": "numberentry", "useCustomName": false, "customName": "", "marks": "10", "scripts": {}, "customMarkingAlgorithm": "", "extendBaseMarkingAlgorithm": true, "unitTests": [], "showCorrectAnswer": true, "showFeedbackIcon": true, "variableReplacements": [], "variableReplacementStrategy": "originalfirst", "nextParts": [], "suggestGoingBack": false, "adaptiveMarkingPenalty": 0, "exploreObjective": null, "prompt": "<p>Bereken de&nbsp;bronspanning $U$ tussen punt in onderstaande afbeelding.</p>\n<p><img src=\"resources/question-resources/basisOhm1_atsjw91.png\" width=\"286\" height=\"245\"/></p>\n<p>$I$ = {nI1}&nbsp;nA</p>\n<p>$R$ = {R3} $\\Omega$</p>\n<p><strong>Geef je antwoord in $\\mu$V.</strong></p>", "minValue": "{nI1*10^(-9)*R3*10^6}", "maxValue": "{nI1*10^(-9)*R3*10^6}", "correctAnswerFraction": false, "allowFractions": false, "mustBeReduced": false, "mustBeReducedPC": 0, "precisionType": "dp", "precision": "2", "precisionPartialCredit": "100", "precisionMessage": "You have not given your answer to the correct precision.", "strictPrecision": false, "showPrecisionHint": true, "notationStyles": ["plain", "plain-eu"], "correctAnswerStyle": "plain-eu"}, {"type": "numberentry", "useCustomName": false, "customName": "", "marks": "10", "scripts": {}, "customMarkingAlgorithm": "", "extendBaseMarkingAlgorithm": true, "unitTests": [], "showCorrectAnswer": true, "showFeedbackIcon": true, "variableReplacements": [], "variableReplacementStrategy": "originalfirst", "nextParts": [], "suggestGoingBack": false, "adaptiveMarkingPenalty": 0, "exploreObjective": null, "prompt": "<p>Bereken de&nbsp;spanning $U$ tussen punt $A$ en $B$ in onderstaande afbeelding.&nbsp;</p>\n<p><img src=\"resources/question-resources/schakeling5_eVzJ79u.png\" width=\"260\" height=\"203\"/></p>\n<p>$I$ = {muI1} $\\mu$A</p>\n<p>$R_1$ = {GR1} G$\\Omega$</p>\n<p>$R_2$ = {GR2} G$\\Omega$</p>\n<p>$R_3$ = {GR3} G$\\Omega$</p>\n<p>$R_4$ = {GR4} G$\\Omega$</p>\n<p><strong>Geef je antwoord in MV.</strong>&nbsp;</p>", "minValue": "{(1/(1/GR1+1/GR2+1/GR3)+GR4)*muI1*10^(-3)}", "maxValue": "{(1/(1/GR1+1/GR2+1/GR3)+GR4)*muI1*10^(-3)}", "correctAnswerFraction": false, "allowFractions": false, "mustBeReduced": false, "mustBeReducedPC": 0, "precisionType": "dp", "precision": "2", "precisionPartialCredit": "100", "precisionMessage": "You have not given your answer to the correct precision.", "strictPrecision": false, "showPrecisionHint": true, "notationStyles": ["plain", "plain-eu"], "correctAnswerStyle": "plain-eu"}, {"type": "jme", "useCustomName": false, "customName": "", "marks": 1, "scripts": {}, "customMarkingAlgorithm": "", "extendBaseMarkingAlgorithm": true, "unitTests": [], "showCorrectAnswer": true, "showFeedbackIcon": true, "variableReplacements": [], "variableReplacementStrategy": "originalfirst", "nextParts": [], "suggestGoingBack": false, "adaptiveMarkingPenalty": 0, "exploreObjective": null, "prompt": "<p>Geef vergelijking</p>", "answer": "\\int_{\u200b\u200b\u200b\u200b\\pi}\u200b\u200b\u200b\u200b^{\u200b\u200b\u200b\u200b\\pi}\u200b\u200b\u200b\u200b sin(x)dx", "showPreview": true, "checkingType": "absdiff", "checkingAccuracy": 0.001, "failureRate": 1, "vsetRangePoints": 5, "vsetRange": [0, 1], "checkVariableNames": false, "singleLetterVariables": false, "allowUnknownFunctions": true, "implicitFunctionComposition": false, "valuegenerators": []}], "partsMode": "all", "maxMarks": 0, "objectives": [], "penalties": [], "objectiveVisibility": "always", "penaltyVisibility": "always"}]}], "navigation": {"allowregen": false, "reverse": true, "browse": true, "allowsteps": true, "showfrontpage": true, "showresultspage": "oncompletion", "navigatemode": "sequence", "onleave": {"action": "warnifunattempted", "message": "<p>Pas op, je hebt nog niet alles ingevuld!</p>"}, "preventleave": true, "startpassword": "ohm"}, "timing": {"allowPause": true, "timeout": {"action": "none", "message": ""}, "timedwarning": {"action": "none", "message": ""}}, "feedback": {"showactualmark": true, "showtotalmark": true, "showanswerstate": true, "allowrevealanswer": false, "advicethreshold": 0, "intro": "", "reviewshowscore": true, "reviewshowfeedback": true, "reviewshowexpectedanswer": true, "reviewshowadvice": true, "feedbackmessages": []}, "contributors": [{"name": "Mart Greuell", "profile_url": "https://numbas.mathcentre.ac.uk/accounts/profile/3806/"}], "extensions": [], "custom_part_types": [], "resources": [["question-resources/basisOhm1.png", "/srv/numbas/media/question-resources/basisOhm1.png"], ["question-resources/schakeling1.png", "/srv/numbas/media/question-resources/schakeling1.png"], ["question-resources/schakeling1_8kNPIRm.png", "/srv/numbas/media/question-resources/schakeling1_8kNPIRm.png"], ["question-resources/schakeling2.png", "/srv/numbas/media/question-resources/schakeling2.png"], ["question-resources/schakeling3.png", 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