JEE Main 2024 Physics question
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
See the full step-by-step solution
Create a free account to read the complete working, and practise questions like this in a timed test.
Create a free account