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The capacities of two conductors are `C_(1)` and `C_(2)` and their respectively potentials are `V_(1)` and `V_(2)`. If they are connected by a thin wire, then the loss of energy will be given byA. `(C_(1)C_(2)(V_(1) +V_(2)))/(2(C_(1) + C_(2)))`B. `(C_(1)C_(2)(V_(1) -V_(2)))/(2(C_(1) + C_(2)))`C. `(C_(1)C_(2)(V_(1) -V_(2)^(2)))/(2(C_(1) + C_(2)))`D. `((C_(1) + C_(2))(V_(1) - V_(2)))/(C_(1)C_(2))` |
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Answer» Correct Answer - C Initial energy `U_(i) = (1)/(2)C_(1)V_(1)^(2) + (1)/(2)C_(2)V_(2)^(2)`. Final energy `U_(f) = (1)/(2)(C_(1) + C_(2))V^(2)` (where `V = (C_(1)V_(1) + C_(2)V_(2))/(C_(1)C_(2)))` Hence energy loss `DeltaU = U_(i) - U_(f) = (C_(1)C_(2))/(2(C_(1) + C_(2))) (V_(1) - V_(2))^(2)` |
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