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MHT CET Physics question

PhysicsCurrent ElectricityMHT CET

Four resistors P, Q., R and S having resistances , , and respectively, are arranged to from a Wheatstone’s bridge. The value of the resistance with which S must be shunted in order to balance the bridge is

Answer: (D)

Solution

Balance needs P/Q = R/S′, i.e. S′ = ; shunting with

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Question ID VK-044976