Question 1
What does Coulomb's law describe?
Question 2
What is the value of the Coulomb constant $k$ in SI units?
Question 3
Two point charges $q_1 = 2 \ \mathrm{\mu C}$ and $q_2 = -3 \ \mathrm{\mu C}$ are placed 0.5 m apart. What is the magnitude of the force between them?
Question 4
Which of the following best describes an electric field line?
Question 5
What is the electric field at a distance $r$ from a point charge $Q$?
