Question

Find magnetizaton if bar magnet have lenght 5cm and cross-sectional area 2 cm^2 and magnetic moment if 1Am^2.​

Answer 1

Explanation:

2Am

2

,I=10cm=10×10

−2

m

Area of cross section = 4cm

2

=4×10

−4

m

2

Then,

Magnetization (M

z

)=

V

M

net

[V= l × cross-sectional area V=10×10

−2

×4×10

−4

V=4×10

−5

m

3

]

⇒M

z

=

4×10

−5

2

M

z

=5000

m

A