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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 J

  • Option 2)

    0.04 J

  • Option 3)

    0.025 J

  • Option 4)

    0.05 J

 

Answers (1)

best_answer

As we have learned

Energy Stored -

U=\frac{1}{2}CV^{2}=\frac{1}{2}QV=\frac{Q^{2}}{2C}

-

 

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

 


Option 1)

0.02 J

Option 2)

0.04 J

Option 3)

0.025 J

Option 4)

0.05 J

Posted by

Plabita

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