A galvanometer has a coil of resistance 100 ohm and gives a full-scale deflection for 30…
Physics · Class 12 · CBSE — Moving Charges and Magnetism
A galvanometer has a coil of resistance 100 ohm and gives a full-scale deflection for 30 mA current. If it is to work as a voltmeter of 30 volt range, the resistance required to be added will be:
- 900 \(\Omega\)
- 1800 \(\Omega\)
- 500 \(\Omega\)
- 1000 \(\Omega\)
Answer
(A) 900
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