MHT CET Physics question

Physics Moving Charges and Magnetism MHT CET

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

(A)10
(B)15 Correct
(C)30
(D)50

Answer: (B)

Solution

The ammeter has resistance 15 and full-scale current ; to double the range an extra shunt must carry while the ammeter carries

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Question ID VK-078642