Question:
A constant current i flows in a loop of radius r. It is placed in a uniform magnetic field B₀ such that B₀ is perpendicular to the plane of the loop. The magnetic force acting on the loop is
A constant current i flows in a loop of radius r. It is placed in a uniform magnetic field B₀ such that B₀ is perpendicular to the plane of the loop. The magnetic force acting on the loop is
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Uniform magnetic fields produce torque, not net force, on current loops.
Updated On: Mar 17, 2026
- irB₀
- 2π irB₀
- zero
- π irB₀
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The Correct Option is C
Solution and Explanation
For a closed current loop in a uniform magnetic field, net magnetic force is zero though torque may act.
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