If resistance of voltmeter is 10000 and resistance of galvanometer is 2 , then find R when voltmeter reads 12V and galvanometer reads 0.1A.

a) |
118 |
b) |
120 |
c) |
124 |
d) |
114 |

If resistance of voltmeter is 10000 and resistance of galvanometer is 2 , then find R when voltmeter reads 12V and galvanometer reads 0.1A.

a) |
118 |
b) |
120 |
c) |
124 |
d) |
114 |

1 Answer

127 votes

**(a)**

The circuit diagram with current variation can be drawn as

Let current flows through R and G.

For a voltmeter with full scale reading, we have

Given,

127 votes

127