A ferromagnetic material with a domain volume of 10^(-18) m^3 and a density of 7.9 g/cm^3 is fully magnetized. If each iron atom has a dipole moment of 9.27 × 10^(-24) A m^2, what is the maximum possible magnetisation M_max of the material?
A
8.0 × 10^5 A/m
B
7.9 × 10^5 A/m
C
9.0 × 10^5 A/m
D
8.5 × 10^5 A/m

Question

A ferromagnetic material with a domain volume of 10^(-18) m^3 and a density of 7.9 g/cm^3 is fully magnetized. If each iron atom has a dipole moment of 9.27 × 10^(-24) A m^2, what is the maximum possible magnetisation M_max of the material?

A

8.0 × 10^5 A/m

B

7.9 × 10^5 A/m

C

9.0 × 10^5 A/m

D

8.5 × 10^5 A/m

Accepted Answer

8.0 × 10^5 A/m

Answer

7.9 × 10^5 A/m

Answer

9.0 × 10^5 A/m

Answer

8.5 × 10^5 A/m

NEET Physics Magnetic Properties of Materials MCQ Question

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