// Numbas version: exam_results_page_options
{"name": "Lampje 2 weerstanden", "extensions": [], "custom_part_types": [], "resources": [["question-resources/Lampje_2_weerstanden.PNG", "/srv/numbas/media/question-resources/Lampje_2_weerstanden.PNG"]], "navigation": {"allowregen": true, "showfrontpage": false, "preventleave": false, "typeendtoleave": false}, "question_groups": [{"pickingStrategy": "all-ordered", "questions": [{"name": "Lampje 2 weerstanden", "tags": [], "metadata": {"description": "", "licence": "None specified"}, "statement": "<p>Een lamp&nbsp;welke een rendement heeft van 6.25 % is aangesloten via meerdere parallel geschakelde draden op een bron met bronspanning $U_b$.</p>\n<p>Elk paar draden hebben een weerstand $R_d$ zoals weergegeven in onderstaand schema.</p>\n<p><img src=\"resources/question-resources/Lampje_2_weerstanden.PNG\" width=\"448\" height=\"316\"/></p>\n<p>Verder zijn nog de volgende zaken bekend:</p>\n<p>$U_b$={Ub}$V$</p>\n<p>$R_d$={0.05*Ub}$\\Omega$</p>\n<p>$R_l$={Ub*0.2}$\\Omega$</p>", "advice": "", "rulesets": {}, "extensions": [], "variables": {"Ub": {"name": "Ub", "group": "Ungrouped variables", "definition": "random(5 .. 40#5)", "description": "<p>U_b is de bronspanning.</p>", "templateType": "randrange"}}, "variablesTest": {"condition": "", "maxRuns": 100}, "ungrouped_variables": ["Ub"], "variable_groups": [], "functions": {}, "preamble": {"js": "", "css": ""}, "parts": [{"type": "numberentry", "useCustomName": false, "customName": "", "marks": "100", "scripts": {}, "customMarkingAlgorithm": "", "extendBaseMarkingAlgorithm": true, "unitTests": [], "showCorrectAnswer": true, "showFeedbackIcon": true, "variableReplacements": [], "variableReplacementStrategy": "originalfirst", "nextParts": [], "suggestGoingBack": false, "adaptiveMarkingPenalty": 0, "exploreObjective": null, "prompt": "<p>Bereken het geleverde nuttig vermogen van de lamp.</p>\n<p>Geef je antwoord op twee decimalen nauwkeurig weer in de eenheid Watt.</p>", "minValue": "{(20/81)*Ub}", "maxValue": "{(20/81)*Ub}", "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": true, "showPrecisionHint": true, "notationStyles": ["plain", "plain-eu"], "correctAnswerStyle": "plain"}, {"type": "numberentry", "useCustomName": false, "customName": "", "marks": "100", "scripts": {}, "customMarkingAlgorithm": "", "extendBaseMarkingAlgorithm": true, "unitTests": [], "showCorrectAnswer": false, "showFeedbackIcon": true, "variableReplacements": [], "variableReplacementStrategy": "originalfirst", "nextParts": [], "suggestGoingBack": false, "adaptiveMarkingPenalty": 0, "exploreObjective": null, "prompt": "<p>Bereken het systeemrendement.</p>\n<p>Geef je antwoord in de eenheid \"dimensieloos\".</p>", "minValue": "0.06", "maxValue": "0.06", "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": true, "showPrecisionHint": true, "notationStyles": ["plain", "plain-eu"], "correctAnswerStyle": "plain"}], "partsMode": "all", "maxMarks": 0, "objectives": [], "penalties": [], "objectiveVisibility": "always", "penaltyVisibility": "always", "contributors": [{"name": "Maurice van Mensvoort", "profile_url": "https://numbas.mathcentre.ac.uk/accounts/profile/8755/"}]}]}], "contributors": [{"name": "Maurice van Mensvoort", "profile_url": "https://numbas.mathcentre.ac.uk/accounts/profile/8755/"}]}