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A cell supplies a current of 2A when it is connected to a 5Ω resistance and supplies current of 1.2A, if it is connected to a resistance of 9Ω. Find the e.m.f of the cell. |
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Answer» A cell supplies a current of 2A when it is connected to a 5Ω resistance and supplies current of 1.2A, if it is connected to a resistance of 9Ω. Find the e.m.f of the cell. |
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