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 $



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