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When resistance of 30Ω is connected to a battery, the current in the circuit is 0.4 A. if this resistance is replaced by 10 Ω resistance, the current is 0.8 A. Then e.m.f. and the internal resistance of thebattery are

Answer» When resistance of 30Ω is connected to a battery, the current in the circuit is 0.4 A. if this resistance is replaced by 10 Ω resistance, the current is 0.8 A. Then e.m.f. and the internal resistance of thebattery are


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