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MHT CET Physics question

PhysicsCurrent ElectricityMHT CET

The sensitivity of galvanometer is 50 div/A. When shunt is used its sensitivity become 10 div/A. If the resistance of galvanometer is 20 then the value of shunt is

Answer: (C)

Solution

The coil current falls to of the total, so , giving

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Question ID VK-078439