2. Electricity and Magnetism

Electrostatics — Quiz

Test your understanding of electrostatics with 5 practice questions.

Practice Questions

Question 1

Which of the following describes the fundamental principle of electrostatics?

Question 2

According to Coulomb's Law, what happens to the electric force between two point charges if the distance between them is doubled?

Question 3

Two positive charges, $q_1$ and $q_2$, are placed a distance $r$ apart. If $q_1 = 2 \text{ nC}$ and $q_2 = 4 \text{ nC}$, and the distance $r = 0.03 \text{ m}$, what is the magnitude of the electric force between them? (Given: Coulomb's constant $k = 9 \times 10^9 \text{ N} \cdot \text{m}^2/\text{C}^2$)

Question 4

What is the definition of an electric field at a point in space?

Question 5

Which principle allows us to calculate the total electric field at a point due to multiple discrete charges?