An iron rod of length 10 cm and area of corss-section `1 cm^2` is subjected to an external magnetising field of 1000 CGS units. The magnetic moment of the specimen is 500 CGS units. Find intensity of magnetisation, (I).

An iron rod of length 10 cm and area of corss-section 1 cm^2 is subjected to an external magnetising field of 1000 CGS units.magnetic induction developed in the specimen. Is 500 CGS units. Find Permeability of iron

An iron rod of length 10 cm and area of corss-section 1 cm^2 is subjected to an external magnetising field of 1000 CGS units.magnetic induction developed in the specimen. Is 500 CGS units. Find Susceptibility of iron.

A coil area 1000 turns and each of area 0.01 m^2 is in a magnetic field of 10^2 T. The magnetic field is at 90^@ to the plane of the coil. The coil is removed from the field in 0.1 second. Find the emf induced across the ends of the coil.

Young's modulus of the material of a wire is 9.8 x 10^10 N/m^2 and the area of cross-section of the wire is 0.012 cm^2 . Elastic limit of the material of the wire is exceeded when the strain exceeds 1/2400 . Find the maximum load that can be used to stretch the wire without causing a permanent set.