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} $
