Question

The magnetic flux linked for an iron bar of 0.2 cm2 within a magnetic field of 1.2 wb/m2 is?

Answer 1

Answer:

μ

0

=4π×10

−7

Wb/Am

H=1200Am

−1

χ=599

The permeability of the iron rod is given by

μ=μ

0

(1+χ)

μ=4×3.14×10

−7

(1+599)=7.536×10

−4

H/m

The magnetic field produced is,

B=μH

B=7.536×10

−4

×1200=0.904T

The magnetic flux per unit area is 0.904×10

−5

Wb

Explanation:

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