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A cell supplies a current of 0.6A through a 2Ω coil and a current of 0.3 A through on 8Ω coil.

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A cell supplies a current of 0.6A through a 2Ω coil and a current of 0.3 A through on 8Ω coil. Calculate the e.m.f and internal resistnce of the cell.

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and E = 1.2 + 0.6 x 4 = 1.2 + 2.4 = 3.6V.

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