An air-filled parallel plate capacitor is attached to a voltage source and charged. The voltage source is removed, and then the plates are separated to double their previous distance. What happens to the electric field between the plates when the plates are separated?

Question

Quizplus · Accepted Answer

The electric field (E) between the plates of a parallel plate capacitor is given by E = V/d, where V is the voltage across the plates and d is the distance between them. When the voltage source is removed, the charge on the plates remains constant, and since the voltage across the plates is not mentioned to change when the plates are separated, the electric field remains the same.

An Air-Filled Parallel Plate Capacitor Is Attached to a Voltage