The plates of a parallel-plate capacitor are maintained with constant voltage by a battery as they are pulled apart. What happens to the strength of the electric field between the plates during this
Process?
A) It increases.
B) It remains constant.
C) It decreases.
D) It cannot be determined from the information given.

Question

Quizplus · Accepted Answer

As the plates are pulled apart, the capacitance of the capacitor decreases. Since the voltage is constant, the electric field strength must decrease to maintain the same potential difference.

The Plates of a Parallel-Plate Capacitor Are Maintained with Constant