Electrostatics Question 266

Question: A parallel plate capacitor is connected to a battery. The plates are pulled apart with a uniform speed. If x is the separation between the plates, the time rate of change of electrostatic energy of capacitor is proportional to [CPMT 2002]

Options:

A) $ 50\mu \mu F $

B) $ 100\mu \mu F $

C) $ 200\mu \mu F $

D) $ 500\mu \mu F $

Show Answer

Answer:

Correct Answer: C

Solution:

Capacitance will increase but not 5 times (because dielectric is not filled completely). Hence new capacitance may be 200 mmF.



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