Electrostatics Question 16

Question: The capacity of a parallel plate condenser is C . Its capacity when the separation between the plates is halved will be [CPMT 1984]

Options:

A) 4C

B) 2C

C) C2

D) C4

Show Answer

Answer:

Correct Answer: B

Solution:

C=ε0Ad.C=ε0Ad/2

therefore 8r3=R3



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