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A parallel plate air capacitor is connec...

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

A

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

B

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

C

Stored energy in the capacitor decreases if the battery remains connected

D

None of these

Text Solution

Verified by Experts

The correct Answer is:
A, B, C
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A parallel plate air capacitor is connected to a battery. If the plates of the capacitor are pulled farther apart, then state whether the following statements are true or false. a. Strength of the electric field inside the capacitor remains unchanged, if the battery is disconnected before pulling the plates. b. During the process, work is done by the external force applied to pull the plates irrespective of whether the battery is disconnected or not. c. Strain energy in the capacitor decreases if the battery remains connected. .

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Knowledge Check

  • If in a parallel capacitor, which is connected to a battery we fill in whole space of its plates, then which of the following increases?

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    The capacitance decreases
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