Physics-Magnetic Force on Current
NEET Physics Magnetic Force on Current MCQ Question
Type: MCQ-diagram based-Medium-Class 12
Refer to the diagram of a rectangular current-carrying loop in a uniform magnetic field. If the arms AB and CD are perpendicular to the magnetic field, what is the torque acting on the loop when the current I flows through it?
A
IAB
B
IAB cos θ
C
IAB sin θ
D
Zero
Correct Answer
Option C
Detailed Explanation
The torque on a current loop in a magnetic field is given by τ = IAB sin θ, where θ is the angle between the magnetic moment and the magnetic field.
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