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In the circuit, the galvanometer G shows...

In the circuit, the galvanometer G shows zero deflection. If the batteries A and b have negligible internal resistance, the value of the resistor R will be -

A

`100Omega`

B

`200Omega`

C

`1000Omega`

D

`500Omega`

Text Solution

Verified by Experts

The correct Answer is:
A
(a)
`iR = 2 = 12 - 500i :. I = 1/50`
`:. 1/50 xx R = 2`
`:. R = 100 Omega` .
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