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MHT CET Physics question

PhysicsExperimental SkillsMHT CET

In a metre bridge experiment, unknown resistance X and known resistance of is connected in left and right gap of a metre bridge respectively If the null point is obtained at 40cm from the left end then the unknown resistance is

Answer: (B)

Solution

X/60 = 40/60 (balancing lengths are 40 cm and 60 cm), so X = ;

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Question ID VK-044969