Question

in a magnetic material, the field strength is found to
be 106 Am . If the magnetic susceptibilite, do
material is 0.5*10-5. Calculade the flux density of the
material.​

Answer 1

Given: χ = –0.4 × 10‒5

H = 5 × 105 A /m

B = ? and M = ?

B = μ0(H + M) = μ0 H(1 + χ)

= 4π × 10‒7 × 5 × 105 [1 – 0.4 × 10‒5] = 4π × 5 × 10‒2 × 0.9996 = 0.62 Wb/m2

M = χH = –0.4 × 10–5 × 5 × 105 = –2.0 A/m.