A bismuth ball of 5 mm radius is placed in a magnetic field with an induction `2 xx 10^(-5)T`. What is the magnotic moment of the ball? What is its direction? The magnetic susceptibility of bismuth is a `chi_(m)=-1.76 xx 10^(-4)`.

Answer

`1.5 xx 10^(-9)A.m^2` against the field.

Explanation

According lo the definition of the magnetization vector M, the magnetic moment of a body in a magnolic field is `p_(M) MV =chi_(m) IIV`.