Current Electricity

Question: A 100 V voltmeter of internal resistance $20\,k\Omega $ in series with a high resistance R is connected to a 110 V line. The voltmeter reads 5 V, the value of R is

1) $210\,k\Omega $

2) $315\,k\Omega $

3) $420\,k\Omega $

4) $440\,k\Omega $

Solution:

Explanation: No Explanation

Different Measuring Instruments Potentiometer Meter Bridge

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