Practice question

Given: A wire of length 0.8 m carrying 3 A makes an angle of 30° with a magnetic field of 0.6 T . What is the force on the wire? These values define the system as per NCERT data. Formula: Force F = I l B sin θ. This is standard NCERT relation. Substitution & Calculation: F = 3 × 0.8 × 0.6 × sin 30° = 2.4 × 0.6 × 0.5 = 0.72 N . Result: The computed value matches expected outcome and confirms correct choice as per NCERT.