A parallel-plate capacitor has horizontal plates. During charging, the upper plate is becoming positively charged and the lower plate is becoming negatively charged. The direction of the displacement current between the plates is:
Options

Question

A parallel-plate capacitor has horizontal plates. During charging, the upper plate is becoming positively charged and the lower plate is becoming negatively charged. The direction of the displacement current between the plates is:

Options

G1 Physics · Accepted Answer

The electric field between the plates points from the positive plate toward the negative plate. Therefore E is vertically downward. During charging, the magnitude of this downward electric field increases, so dE/dt is also vertically downward. Displacement-current density is J = ε₀ dE/dt. Hence the displacement current is vertically downward. Correct option: B.