Resistors in series and parallel

Basic questions on the Wheatstone Bridge

Potential Divider

Basic potential divider questions

Basic circuit analysis

Basic Circuit Analysis questions

These are basic circuit analysis questions and can be used for year 1 introductory classes to circuit analysis.

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Find a regression equation given 12 months data on temperature and sales of a drink. Includes an interactive diagram for experimenting with fitting a regression line.

rebelmaths

Differentiate $\displaystyle \cos(e^{ax}+bx^2+c)$

Showing off the part types.

Conversions of units

A silly question about chicken names to try out numbas

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Zadanie pozwala ocenić umiejętność studenta w zakresie: formułowania hipotez, przeprowadzania testu istotności, wnioskowania statystycznego.

Zmienne losowe: dane surowe

A demonstration of the exam-level variable override feature. The student is shown the same question several times, but each instance is set up to suggest a different error in the process of computing the median of a sample. The first instance is very easy, and the last is pretty hard.

A few questions showing how to use custom constants in different contexts.

In this question, the imaginary unit $\sqrt{-1}$ is written as $j$ instead of $i$.

The letters i, j and k are used to represent the standard 3D unit vectors.

In this question, $\tau$ represents the ratio of a circle's radius to its circumference, or $2\pi$.

Dane są średnia i odchylenie standardowe 1000-elementowej próby. Należy wyznaczyć 95% przedział ufności dla średniej w populacji.

The student is shown a GeoGebra worksheet containing a single point on a grid. They must move the point to the required coordinates.

The part is marked as correct if the point is in the right position.

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A graph (of a cubic) is given. The question is to determine the number of roots and number of stationary points the graph has. Non-calculator. Advice is given.

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