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A 100 V voltmeter of internal resistance...

A 100 V voltmeter of internal resistance 20 `kOmega` in series with a high resistance R is connected to a 110 V line. The voltmeter reads 5 V, the value of R is

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The correct Answer is:
`290 kOmega`, Due to very small value of current, Ammeter has not been used. The ammeter reading would been very small. Note that this is unusual use of a voltmeter. It is meant only for the measurement of high resistance.
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RESONANCE ENGLISH-CURRENT ELECTRICITY-High Level Problems (HIP)
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