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In a meter bridge experiment Two unknown...

In a meter bridge experiment Two unknown resistances X and Y are connected to left and right gaps of a meter bridge and the balancing point is obtained at 20cm from left `(X lt Y)` The new position of the null point from left if one decides balance a resistance of 4X against Y.

A

50cm

B

80cm

C

40cm

D

70cm

Text Solution

Verified by Experts

The correct Answer is:
A
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