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MHT CET 2026 Physics question

PhysicsMoving Charges and MagnetismMHT CET 2026

The magnetic field at perpendicular distance 'r' form a long wire carrying current 'I' is 'B' The magnetic field at perpendicular distance '2r' from the same wire is

Answer: (B)

Solution

The field of a long straight current-carrying wire is , so . Doubling the distance to halves the

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Question ID VK-100090