A steel bar of cross-sectional area A and length l is magnetised to develop an intensity of magnetisation l . The pole strength of the bar is

A uniform steel bar of cross-sectional area A and length L is suspended, so that it hangs vertically. The stress at the middle point of the bar is ( rho is the density of stell)

The ratio of the intensity of the magnetisation to the strength of magnetising field is called

A bar magnet of magnetic moment 10 Am^ 2 has a cross sectional area of 2.5 xx1O^-4 m^2 .If the intensity rof magnetisation of the magnet is 10^6 Am^-1 , the length of the magnet is

A bar mangnet has length 3 cm cross sectional area 2 cm^(2) and magnetic moment 3 Am^(2) the intensity of magnetisation of the bar magnet is

A bar mangnet has length 3 cm cross sectional area 2 cm^(2) and magnetic moment 3 Am^(2) the intensity of magnetisation of the bar magnet is

The amgnetising field of 1600 Am^-1 produces a magnetic flux of 2.4 xx 10^-5 weber in a bar of iron of cross-section 0.2 cm^2 . Calculate relative permeability, intensity of magnetisation and susceptibility of the bar.