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A galvanometer of resistance 30Omega is ...

A galvanometer of resistance `30Omega` is connected to a battery of emf 2 V with `1970Omega` resistance in series. A full scale deflection of 20 divisions is obtained in the galvanometer. To reduce the deflection to 10 divisions, the resistance in series required is

A

`4030 Omega`

B

`4000 Omega`

C

`3970 Omega`

D

`2000 Omega`

Text Solution

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The correct Answer is:
C
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