Welcome to the Quiz!
This quiz contains 10 questions from a mix of 1 subtopics.
An 800 W hairdryer is used for 30 seconds.
How much energy is transferred in total? Give your answer in Joules.
J
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A circuit with a 12 V battery, and a current of 6 A is left on for 20 s.
How much energy is transferred in total? Give your answer in Joules.
J
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The potential difference between the two terminals on a battery is 6 volts.
How much work (energy) is required to transfer 12 coulombs of charge across the terminals?
J
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A circuit has a potential difference of 12 V, and a current of 15 amps.
Calculate the power of the circuit.
W
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A circuit with has a current of 3 A, and a total resistance of 30 Ω.
What is the power of the circuit?
W
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A handheld fan draws a current of 6 A. Over 20 seconds it transfers a 1200 J of energy.
What is the voltage of the battery that the fan uses?
V
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A circuit has a power of 20 W and a current of 4 A.
What is the resistance of the circuit? Give your answer to 3 s.f.
Ω
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A component in a circuit has a potential difference of 5 V across it, and receives 30 J of energy.
How much charge passes through the component?
C
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A circuit has a potential difference of 12 V, and produces 36 W of power.
Calculate the current of the circuit.
A
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A lamp with a power rating of 60 W transfers 2520 J of energy.
How long was the lamp on for?
s
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