Electrostatics Question 533

Question: Two capacitors each of $ 1\mu F $ capacitance are connected in parallel and are then charged by $ 200\ volts $ d.c. supply. The total energy of their charges (in joules) is [MP PMT 1990, 2002]

Options:

A) 0.01

B) 0.02

C) 0.04

D) 0.06

Show Answer

Answer:

Correct Answer: C

Solution:

$ U=\frac{1}{2}CV^{2}=\frac{1}{2}\times 2\times {{(200)}^{2}}\times {{10}^{-6}}=0.04J $



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