In the $R-C$ circuit shown in the figure the total energy of $3.6 \times 10^{-3}\  J$ is dissipated in the $10$ $\Omega$ resistor when the switch $S$ is closed. The initial charge on the capacitor is.....$\mu C$
  • A$60 $
  • B$120 $ 
  • C$60\  \sqrt 2  $
  • D$\frac{{60}}{{\sqrt 2 }}$ 
Medium
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