Questions
The plate separation in a parallel plate condenser is d and plate area is A. If it is charged to V volts, then the work done in increasing the plate separation to 2 d will be
detailed solution
Correct option is B
The work done W is given byW=U2−U1Here, U1=12CV2and U2=12C2(2V)2=CV2∴ W=CV2−12CV2=12CV2=12ε0AdV2=ε0AV22dTalk to our academic expert!
Similar Questions
A capacitor is made of a flat plate of area A and a second plate constructed like a staircase as shown in the figure. The capacitance of the arrangement is
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