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An inductor coil and a capacitor and a r...

An inductor coil and a capacitor and a resistance of `5Omega` are connected in series to an a.c. source of rms voltage 30 V. When the frequency of the source is varied, a maximum r.m.s. current of 5 A is observed. If this inductor is connected in parallel with a resistance `5Omega` to a battery of emf 25 V and internal resistance `2.0Omega`, the current drawn from the battery is

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