MHT CET 2025 Physics question

The value of the shunt resistance that allows 10% of the main current through the galvanometer of 99 is

(A)
(B)Correct
(C)
(D)

Answer: (B)

Solution

Let the main current be . The galvanometer takes and the shunt takes . The galvanometer and the shunt are in parallel (same potential difference): . So \dfrac{I_gG}${I

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Question ID VK-102794