The magnetic induction and magnetising field in a sample of magnetic material are `1Wb//m ^(2) and 2 xx 10 ^(3) A//m.` Find the magnetic susceptibility.

Explanation

We know that,
`B = H + 4 pi chi H = H (1 + 4 pi chi) implies (B)/(H) = 1 + 4 pi chi`
Susceptibility of a substance,
`chi =((B)/(H ) - 1) xx (1)/( 4pi)`
`= ((1)/( 2 xx 10 ^(3)) -1) (1)/( 4 xx 314)`
`chi ~~ - 0. 0796`