Practice question

Given: A rectangular loop of area 0.04 m² with 25 turns carries 3 A in a field of 1.2 T perpendicular to the plane. What is the torque? Formula: tau = N I A B sin θ, θ = 90° to plane means sin 0° = 1 with normal. Substitution & Calculation: tau = 25 × 3 × 0.04 × 1.2 × 1 = 3.6 N m . Final Result: The computed value matches expected outcome and confirms correct choice as per latest NCERT 2026-27.