Practice question

Given: A bar magnet with original m = 1.8 A m² is cut transversely into two equal parts. What is m of each part? These values define the system as per NCERT data. Formula: Given: m = 1.8 A m². This is the standard NCERT relation for this phenomenon. Substitution & Calculation: When cut transversely, each part has half the original magnetic moment. . Each part: m' = 1.8/2 = 0.9 A m² . Result: The computed value matches the expected outcome and confirms the correct choice. Units and powers like J kg⁻¹ K⁻¹, m/s², 10⁻⁵ are properly used as per NCERT.