Physics - Capacitor Question with Solution | TestHub

Strength of electric field inside the capacitor remains unchanged, if battery is disconnected before pulling the plates.

During the process, negative work is done by an external force applied to pull the plates whether battery is disconnected or it remains connected.

Potential energy in the capacitor decreases if the battery remains connected during pulling plates apart.

Potential energy in the capacitor decreases if the battery is disconnected before pulling plates apart.