A bar magnet has magnetic moment of 1000 c.g.s unit,calculate the magnetic intensity at point 20cm from each pole?
Answers
Answered by
2
Answer:
Magnetic induction on axial line,B=
4π
μ
0
.
(d
2
−l
2
)
2
2Md
length of magnet=2l=0.01m=10cm
or,l=5cm
M=2ml=2×120×0.05
d=20cm
∴B=
4π
μ
∘
×
(0.2
2
−0.05
2
)
2
2×2×120×0.05×0.2
=341.33×1o
−6
T
=3.4×10
−4
T
Answered by
0
Answer:
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