A galvanometer of 50 ohm resistance has 25 divisions. A current of 4 10 -4 A gives a…
Physics · Class 12 · CBSE — Moving Charges and Magnetism
A galvanometer of 50 ohm resistance has 25 divisions. A current of 4 \(\times\) 10-4 A gives a deflection of 1 division. To convert this galvanometer into a voltmeter having a range of 25 V, it should be connected with a resistance of:
- 2,450 \(\Omega\) in series
- 2,500 \(\Omega\) as a shunt
- 2,450 \(\Omega\) as a shunt
- 2,550 \(\Omega\) in series
Answer
(A) 2,450 in series
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