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A galvanometer has a coil of resistance ...

A galvanometer has a coil of resistance `100 Omega` and gives full scale deflection for 30 mA current. If it is to work as a voltmeter of 30 V, the resistance required to be added is

A

` 1000 Omega`

B

` 900 Omega`

C

`1800 Omega`

D

`500 Omega`

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The correct Answer is:
B
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