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Q.

In the meter bridge experiment, the length AB of the wire is 1 m. The resistors X and Y have values 5Ω and 2Ω respectively. When a shunt resistance S is connected to X, the balancing point is found to be 0.625 m from A. Then, the resistance of the shunt is

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a

7.5Ω

b

10Ω

c

12.5Ω

d

5Ω

answer is B.

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Detailed Solution

R1R2=L1L   L is in meter

5S5+S2=0.6250.375=53

S=10 Ω

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