Home Physics Electrostatics Potential & Capacitance Mix A parallel plate air capacitor is connected …
Physics Electrostatics Potential & Capacitance Mix MCQ (Single Correct)

A parallel plate air capacitor is connected to a battery. If plates of the capacitor are pulled further apart, then which of the following statements are correct?

A
Strength of electric field inside the capacitor remain unchanged, if battery is disconnected before pulling the plate.
B
During the process, work is done by an external force applied to pull the plates whether battery is disconnected or it remain connected.
C
Potential energy in the capacitor decreases if the battery remains connected during pulling plates apart.
D
None of the above

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The correct answer is:
CHECK THE SOLUTION.

(a, b, c)

If battery is disconnected and plate are pulled apart, then charge will remain constant

E remain same is correct

work is done against attractive force by F ext

is correct

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