When a resistance of `2 Omega` is placed across the terminals of a battery, the current is 0.5 A. When the resistance across the terminals of the batt
When a resistance of `2 Omega` is placed across the terminals of a battery, the current is 0.5 A. When the resistance across the terminals of the battery is `5 Omega`, the current is 0.25 A. Calculate the emf of the battery and also its internal resistance.
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