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MHT CET Physics question

PhysicsMoving Charges and MagnetismMHT CET

Two identical long conducting wires AOB and COD are placed at right angles to each other, with one above other such that O is their common point for the two. The wires carry and currents, respectively. Point P is lying at distance from O along a direction perpendicular to the plane containing the wires. The magnetic field at the point P will be [AIPMT 2014]

Answer: (D)

Solution

Each wire gives a field at P and the two fields are mutually perpendicular, so

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Question ID VK-078685