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MHT CET Physics question

PhysicsMoving Charges and MagnetismMHT CET

An ammeter is obtained by shunting a 30 galvanometer with 30 resistance. What additional shunt be connected across it, to double its range?

Answer: (C)

Solution

The 30 shunt gives range ; for range the total shunt must be , so the added shunt x satisfies

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Question ID VK-078399