Electrostatics Question 137

Question: A parallel plate capacitor carries a charge $ q $ . The distance between the plates is doubled by application of a force. The work done by the force is [MP PET 2003]

Options:

A) Zero

B) $ \frac{q^{2}}{C} $

C) $ \frac{q^{2}}{2C} $

D) $ \frac{q^{2}}{4C} $

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Answer:

Correct Answer: C

Solution:

Work done appears in the form of energy which is given by $ \frac{q^{2}}{2C} $



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