Questions
In an isolated charged parallel plate capacitor the electrostatic potential energy stored in it is 12µJ. Find the work done in increasing the separation between the plates to 2 times its original value.
detailed solution
Correct option is D
Ci=ε0Ad and Cf=ε0A2d=Ci2∴Ui=Q22Ci and Uf=Q22Cf=Q22Ci2=2Ui∴W=Uf−Ui=2Ui−Ui=Ui=12μJTalk to our academic expert!
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Two identical metal plates are given positive charges Q1 and Q2 (<Q1) respectively. If they are now brought close together to form a parallel plate capacitor with capacitance C, the potential difference between them is
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