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Calculate magnetic flux density and magnetisation in copper.

The magnetic field strength of copper is 10 ampere / metre and magnetic susceptibility is 0.8×103 - Mumbai university > FE > SEM 1 > Applied Physics 1

Marks: 7M

Year: May 2015

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Given:

H=106A/m

=0.8×103

To find: M & H = ?

Soln:

Magnetic field strength = H

Magnetic susceptibility = φ

Magnetic flux density = B

Magnetisation = M

φ = M/H

M=φ×H=0.8×103

B = µ_0 (M + H)

= 4π ×10^{-7}(-0.8 × 10^3 + 10^6)

B = 1.255 Wb/m^2

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