A microammeter has a resistance of and a full scale range of

PHYSICS · Single correct · CBSE · Physics · Moving Charges and Magnetism · Moving Charges and Magnetism

Problem

A microammeter has a resistance of 100Ω100\Omega and a full scale range of 50μA50\mu\text{A} . It can be used as a voltmeter or as a higher range ammeter provided a resistance is added to it. Pick the correct range and resistance combination (s) (1) 50 V range with 10kΩ10\text{k}\Omega resistance in series (2) 10 V range with 200kΩ200\text{k}\Omega resistance in series (3) 5 mA range with 1Ω1\Omega resistance in parallel (4) 10 mA range with 1Ω1\Omega resistance in parallel

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