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)

200

b)

100

c)

500

d)

1000

Question ID - 150485 :-

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)

200

b)

100

c)

500

d)

1000

1 Answer

5876 Votes

3537

Answer Key : (b) -

(b)

The galvanometer shows zero deflection , current through XY is zero.

As a result potential drop across R is 2V, circuit can be redrawn as

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