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MHT CET Physics question

PhysicsCurrent ElectricityMHT CET

A galvanometer of resistance , is shunted by a resistance ohm. To keep the main current in the circuit unchanged, the resistance to be put in series with the galvanometer is

Answer: (A)

Solution

The total resistance of the shunted galvanometer is ; to restore the original resistance the series resistance

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Question ID VK-078719