Every part (dl ) of the wire is pulled by the force i(dl)B acting perpendicular to the current & magnetic field giving it the shape of a circle.
A loop of flexible wire of irregular shape carrying current is placed in an external magnetic field. Identify the effect of the field on the wire.
Held on 18 Mar 2021 · Verified 6 Jul 2026.
Loop assumes circular shape with its plane normal to the field.
Loop assumes circular shape with its plane parallel to the field.
Wire gets stretched to become straight.
Shape of the loop remains unchanged.
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