A long conductor lies wholly inside a uniform magnetic field of strength

MATHEMATICS · Subjective · ISC · Mathematics · Physics · Magnetic Effects of Current and Magnetism

Problem

A 40 cm40\,\text{cm} long conductor lies wholly inside a uniform magnetic field of strength 0.75 T0.75\,\text{T}. The conductor experiences a force of 0.90 N0.90\,\text{N} when it carries a current at 30∘30^{\circ} to the field direction. Determine the current in the conductor.

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