Question 91: Magnetism and Matter

Question

A paramagnetic substance in the form of a cube with sides 1 cm has a magnetic dipole moment of 20 $$ 	imes $$ 10–6 J/ T when a magnetic intensity of 60 $$ 	imes $$ 103 A/m is applied. Its magnetic susceptibility is

Accepted Answer

x = $${1 \over H}$$
I = $${{Magnetic\,moment} \over {Volume}}$$
I = $${{20 	imes {{10}^{ - 6}}} \over {{{10}^{ - 6}}}}$$ = 20 N/m
2
x = $${{20} \over {60 	imes {{10}^{ + 3}}}}$$ = $${1 \over 3} 	imes {10^{ - 3}}$$
= 0.33 $$ 	imes $$ 10
$$-$$3
= 3.3 $$ 	imes $$ 10
$$-$$4

Answer

3.3 $$ 	imes $$ 10–4

Answer

2.3 $$ 	imes $$ 10–2

Answer

4.3 $$ 	imes $$ 10–2

Answer

3.3 $$ 	imes $$ 10–2

Magnetism and Matter

A paramagnetic substance in the form of a cube with sides 1 cm has a magnetic dipole moment of 20 $ \times 10–6 J/ T when a magnetic intensity of 60 \times $ 103 A/m is applied. Its magnetic susceptibility is

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