JEE Main 2026 Physics question

PhysicsMoving Charges and MagnetismJEE Main 2026

A moving coil of galvanometer when shunted with 2 Ω resistance gives a full scale deflection for a current of 500 mA. When a resistance of 470 Ω is connected in series it gives a full scale deflection for 10 V potential applied on it. The value of resistance of galvanometer coil is Ω.

Answer: 50

Solution

Let the coil have resistance G and full-scale current . With the shunt: =(0.5−. In

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Question ID VK-015607