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In an experiment to determine the resist...

In an experiment to determine the resistance of a galvanometer by half deflection method, the circuit shown is used. In one set of readings , if `R = 10 Omega S = 4 Omega`, then the resistance of the galvanometer is

A

`20/3 Omega`

B

`40/3 Omega`

C

`50/3 Omega`

D

`70/3 Omega`

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The correct Answer is:
A
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