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 $
