Magnetic moment is given by, M=iA
=5×(0.2)×(0.1)(−i^)
=0.1(−i^)
τ=M×B=0.1(−i^)×(2×10−3)(j^)
=2×10−4(−k^)Nm
JEE Main 2024 — Physics Electromagnetism
A uniform magnetic field of 2×10−3T acts along positive Y-direction. A rectangular loop of sides 20cm and 10cm with current of 5A is in Y-Z plane. The current is in anticlockwise sense with reference to negative X axis. Magnitude and direction of the torque is :
Held on 31 Jan 2024 · Verified 6 Jul 2026.
2×10−4Nm along positive Z –direction
2×10−4Nm along negative Z-direction
2×10−4Nm along positive X-direction
2×10−4Nm along positive Y-direction
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