JEE Main 2024 Physics question

PhysicsMoving Charges and MagnetismJEE Main 2024

A uniform magnetic field of 2 × 10⁻³ T acts along positive Y-direction. A rectangular loop of sides 20 cm and 10 cm with current of 5 A is in Y-Z plane. The current is in anticlockwise sense with reference to negative X axis. Magnitude and direction of the torque is

Answer: (B)

Solution

τ = iAB = 5 × (200 × 10⁻⁴) × 2 × 10⁻³ = 2 × 10⁻⁴ N m. The magnetic moment is along −î (anticlockwise as seen

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Question ID VK-017196