A nonideal battery connected to a resistor (R_{1}) in a circuit results in the current (I_{1}), if

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A nonideal battery connected to a resistor \(R_{1}\) in a circuit results in the current \(I_{1}\), if the same battery connected to a resistor \(R_{2}\) gives current \(I_{2}\).

(a) What should be the value of \(R_{2}\) for which the internal resistance is zero?

(b) If \(R_{2}=2 R_{1}\) and \(I_{1}=2 I_{2}\), calculate the emf of the battery in terms of \(R_{1}\) and \(I_{1}\). \(\cdot\)

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