A microameter has a resistance of 100 om...

A microameter has a resistance of `100 omega` and a full scale range of ` 50 muA`. It can be used as a voltmeter or as a higher range ammeter provides a resistance is added to it . Pick the correct range and resistance combination(s)

50 V range with 10kΩ resistance in series

5 mA range with 1Ω resistance in parallel

10 mA range with 1Ω resistance in parallel

none of these

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The correct Answer is:

`S=(i_g/(i-i_g)).G=1 Omega`

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