Circuit Power

Practice Questions

AP Physics 1 › Circuit Power

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1

Parallel circuit

What is the power in the below circuit if , and ?

2

What is the power of a circuit whose voltage is and equivalent resistance is ?

3

Light bulbs give their wattage based on their power output when they are in parallel with a voltage source. For most, that comes from an outlet which typically had a voltage of .

What is the resistance of a 60W lightbulb if it's plugged into a socket with ?

4

What is the power of a circuit whose current is and voltage is ?

5

The resistor in Angela's food processor is and has a voltage of across it. If her friend Sam uses it for straight to make his famous coleslaw and must reimburse her for the electricity use, how much does the power company charge per kilowatt hour?

6

If the voltage of a circuit is doubled, how is the power of a circuit changed? Assume the resistance of the circuit stays the same.

7

What is the power of a circuit with a voltage of and current?

8

What is the power of a circuit with a resistance of and current?

9

What is the power of a circuit with a voltage of and current?

10

Basic circuit

How much power is dissipated along the circuit above?

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