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MHT CET 2026 Physics question

PhysicsMoving Charges and MagnetismMHT CET 2026

Lorentz magnetic force is acting on a particle of charge q moving with velocity in magnetic field .The work done by this force on the charged particle is

Answer: (A)

Solution

The magnetic force is , which is perpendicular to at every instant. Work done , because a vector is perpendicular to its own cross product with another. So the work done

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Question ID VK-098561