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MHT CET Physics question

PhysicsExperimental SkillsMHT CET

In a metrebridge experiment, null point is obtained at 20 cm from one end of the wire when resistance X is balanced against another resistance Y. If X < Y, then where will be the new position of the null point from the same end, if one decides to balance a resistance of 4X against Y?

Answer: (A)

Solution

, so and the bridge is balanced at the centre, i.e. at 50

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Question ID VK-045204