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The capacity of a condenser is 4*10^{-6} farad and its potential is100 volts . The energy released on discharging it fully will be

  • Option 1)

    0.02 joule

  • Option 2)

    0.04 joule

  • Option 3)

    0.025 joule

  • Option 4)

    0.05 joule

 

Answers (1)

best_answer

 As we have learned

Loss of Energy -

\Delta U=U_{i}-U_{f}=\frac{C_{1}C_{2}}{2\left ( C_{1} +C_{2}\right )}\left ( V_{1}-V_{2} \right )^{2}

-

 

 U=1/2CV^2= 1/2 *4*10^{-6}*100^2*= 0.02 J

 


Option 1)

0.02 joule

Option 2)

0.04 joule

Option 3)

0.025 joule

Option 4)

0.05 joule

Posted by

Avinash

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