A bar magnet 10 cm long has cross-sectional area 2 cm2 and magnetic dipole moment of 10 A∙m2. The magnetization of its material, assumed to be uniform, is
A. 5 × 105 A/m
B. 2 × 105 A/m
C. 0.5 A/m
D. 0.2 A/m.
Answer:A
A bar magnet 10 cm long has cross-sectional area 2 cm2 and magnetic dipole moment of 10 A∙m2. The magnetization of its material, assumed to be uniform, is
A. 5 × 105 A/m B. 2 × 105 A/m C. 0.5 A/m D. 0.2 A/m.