Electric Circuits Random Retrieval

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Electric Circuits Random Retrieval

This quiz contains all the questions in the Electric Circuits section. The website will pick 10 questions at random.

1 / 10

The unit of potential difference is the volt. A correct alternative unit is:

2 / 10

Select the effect on Vout when the light intensity decreases on this circuit.

3 / 10

The current at A1 is 4 A and the current at A2 is 1 A. Select the current at A3.

4 / 10

A cell of e.m.f. 3.0 V and internal resistance 0.3 Ω is connected in a series with an ammeter reading 0.25 A and a motorised hula girl who dances when the circuit is complete. Calculate the power supplied by the cell.

5 / 10

A 75 watt light bulb is left ON for 24 hours, calculate the total energy transferred.

6 / 10

Laura Kenny can reach 1070 W cycling on her bike. If she was a 12 V battery, what would her current be?

7 / 10

Which graph best represents the resistance of an NTC thermistor?

8 / 10

Which graph best represents the I-V characteristic graph of a diode?

9 / 10

Which of these circuit symbols represents a thermistor?

10 / 10

The charge on an electron is 1.60x10-19 C. Calculate how many electrons are needed to create a charge of 4.2 C.

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