The magnetic moment of a magnet of mass 75 gm is 9 × 10–⁷A-m2. If the density of the material of magnet is 7.5 × 10³ kg/m3 then intensity of magnetisation will be____________
A. 0.9 A/m
B. 0.09 A/m
C. 9 A/m
D. 90 A/m
Answer:B
The magnetic moment of a magnet of mass 75 gm is 9 × 10–⁷A-m2. If the density of the material of magnet is 7.5 × 10³ kg/m3 then intensity of magnetisation will be____________
A. 0.9 A/m B. 0.09 A/m C. 9 A/m D. 90 A/m