MHT CET 2026 Physics question

If the number of turns in the coil of a moving coil galvanometer decreases, the resistance of the galvanometer

(A)decreasesCorrect
(B)increases
(C)remains the same
(D)may increase or decrease

Answer: (A)

Solution

The resistance of the galvanometer is the resistance of its coil wire, , where is the total length of wire. The length of wire is proportional to the number of turns (each turn has a fixed perimeter), so . If the number of turns

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Question ID VK-097663