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STANDARD Physics Wheatstone Bridge MCQ Question

Type: MCQ-numerical-Medium-Class 12

In a Wheatstone's network, P = 2 Ω, Q = 2 Ω, R = 2 Ω and S = 3 Ω. The resistance with which S is to be shunted in order that the bridge may be balanced is

A

1 Ω

B

2 Ω

C

4 Ω

D

6 Ω

Correct Answer

Option D

Detailed Explanation

Let x be the resistance shunted with S for the bridge to be balanced. For a balanced Wheatstone's bridge, the ratio of resistances in one pair of opposite arms is equal to the ratio in the other pair. Solving the equations gives x = 6 Ω.

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