Electrostatics Question 125
Question: A condenser has a capacity $ 2\mu F $ and is charged to a voltage of 50 V. The energy stored is [MH CET 2002]
Options:
A) $ \text{25}\times \text{1}{{0}^{\text{5}}}Joule $
B) 25 Joule
C) 25 x 10 erg
D) $ \text{25}\times \text{1}{{0}^{\text{3}}}erg $
Show Answer
Answer:
Correct Answer: D
Solution:
$ U=\frac{1}{2}CV^{2}=\frac{1}{2}\times 2\times {{10}^{-6}}\times {{(50)}^{2}}=25\times {{10}^{-4}}J $
$ =25\times 10^{3}erg $
