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MHT CET Physics question

PhysicsExperimental SkillsMHT CET

Two equal resistances are introduced in two gaps of a metre bridge. The shift in the null point if an equal resistance is connected in series with resistance in left gap is

Answer: (A)

Solution

Initially the null point is at 50 cm; with the left gap and right gap , gives cm, so the shift is

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Question ID VK-045149