Q)
(chatquestion)...76 A bar magnet has pole strength 5 ampere-meter,
magnetic length 20 cm and cross-sectional area
2.5 cm then its magnetic dipole moment and
magnetisation are
(1) 1 A m, 4 x 104 A/m
(2) 1 A m2, 2 x 10 A/m
(3) 100 A m2, 2 A/m
(4) 7.5 A m2, 5 x 104 A/m
...
