Two magnets have magnetic moments are in the ratio X:Y and their lengths in the ratio X:Z. The ratio of pole strength is

Two wires A and B of same material have radii in the ratio 2:1 and lengths in the ratio 4:1 . The ratio of the normal forces required to produce the same change in the lengths of these two wires is

SI unit of magnetic pole strength is

A long magnet is cut in two parts in such a way that the ratio of their lengths is 2:1. The retio of pole strengths of both the section is

The rate of diffusion of two gases X and Y is in the ration of 1:5 and that of Y and Z in the ratio of 1:6 . The ratio of the rate of diffusion of Z with respecte to X is :

Two short magnet having magnetic moment in the ratio 27:8 , when placed on the opposite sides of a deflection magnetometer, produce no deflection. If the distance of the weaker magnet is 0.12m from the centre of deflection magnetometer, the distance of the stronger magnet from the centre is

Two solenoids of equal number of turns have their lengths and the radii in the same ratio 1:2. The ratio of their self inductances will be

A magnet of magnetic moment 10 Am^(2) has magnetic length 5 cm.The strength of magnet is

Two rings having same moment of inertia have their radii in the ratio 1 : 4. Their masses will be in the ratio

In tan A position two short bar magnets of magnetic moments in the ratio of 1 : sqrt3 aer placed at the same distnace respectively. If the definection produced for the first magnet be 30^(@), then what will be defication for the second magnet ?

Three identical bar magnets each of magnetic moment M are arranged in the form of an equilateral triangle such that at two vertices like poles are in contact. The resultant magnetic moment will be