2. Electricity and Magnetism

Electric Potential — Quiz

Test your understanding of electric potential with 5 practice questions.

Practice Questions

Question 1

A charge of $-4 \text{ nC}$ is moved from point A to point B. If the electric potential at point A is $100 \text{ V}$ and at point B is $250 \text{ V}$, what is the change in electric potential energy of the charge?

Question 2

Which of the following statements about the electric potential inside a conductor in electrostatic equilibrium is true?

Question 3

An electric field is given by $E_x = -5x \text{ V/m}$. If the electric potential at $x=0$ is $0 \text{ V}$, what is the electric potential at $x=2 \text{ m}$?

Question 4

Two point charges, $q_1 = +5 \text{ \mu C}$ and $q_2 = -2 \text{ \mu C}$, are placed at the corners of an equilateral triangle with side length $0.1 \text{ m}$. What is the electric potential at the third corner (P) of the triangle?

Question 5

A solid conducting sphere of radius $R$ carries a total charge $Q$. Which of the following correctly describes the electric potential inside the sphere ($r < R$)?