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| 1. |
In charging a capacitor of capacitance C by a source of emf V, energy supplied by the sources QV and the energy stored in the capacitor is1//2 QV. Justify the difference. |
| Answer» SOLUTION :In the capacitor the voltage increases from O to V, hence energy STORED will correspond to average which will be ` 1//2 QV`.Whilethe sourceisatconstantemf V. Soenergysuppliedwill be QV. Thedifferencebetweenthe twogoesas heatandemf RADIATIONS. | |