Electrostatics Question 3

Question: The energy of a charged capacitor is given by the expression ($ q $ = charge on the conductor and C = its capacity) [MP PMT 1989]

Options:

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

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

C) $ 2qC $

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

Show Answer

Answer:

Correct Answer: A

Solution:

$ q=CV $ and $ U=\frac{1}{2}CV^{2}=\frac{q^{2}}{2C} $



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