A positive test charge is released from rest at a point where the electric potential…
PHYSICS · Single correct · AP · Physics C: Electricity and Magnetism · Electric Potential · Electric Potential
Problem
A positive test charge is released from rest at a point where the electric potential is 250V and it spontaneously moves to a point where the potential is 100V. Which statement is most consistent with energy conservation for the charge–field system?
(a) The charge’s electric potential energy decreases, while its kinetic energy remains unchanged.
(b) The charge’s electric potential energy decreases, and its kinetic energy increases by an equal amount.
(c) The charge’s electric potential energy decreases by half the amount that its kinetic energy increases.
(d) The charge’s electric potential energy increases, and its kinetic energy decreases by an equal amount.