3. Electric Circuits

Electric Power — Quiz

Test your understanding of electric power with 5 practice questions.

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Practice Questions

Question 1

What does electric power measure in a circuit?

Question 2

Which equation gives electric power in terms of voltage and current?

Question 3

A device has a voltage of $12\ \text{V}$ and a current of $2\ \text{A}$. What is its electric power?

Question 4

If the current through a resistor stays the same and the resistance increases, what happens to the power dissipated by the resistor?

Question 5

Which unit is used for electric power?