Two identical thin bar magnets, each of length L and pole strength m are placed at right angles to each other, with the N pole of one touching the S-pole of the other. Find the magnetic moment of the system.

Two thin bar magnets of pole strengths 4Am and 7Am respectively and length 0.21m and 0.12m respectively are placed at right angles to each other with the N-pole of first angles to each other with the N-pole of first touching the S-pole of the second. Find the magnetic moment of the system.

Two magnets each of magnetic moment M are placed so as to form a cross at right angles to each other. The magnetic moment of the system is

Two identical short bar magnets each of magnetic moment 12.5Am^2 are placed at a separation of 10cm between their centres, such that their axes are perpendicular to each other. Find the magnetic field at a point midway between the two magnets.

Two short magnets of magnetic moment 2 Am^(2) and 5 Am^(2) are placed along two lines drawn at right angle to each other on the sheet of paper as shown in the figure. What is the magnetic field at the point of intersection of their axis?

A bar magnet of length 10cm is placed in the magnetic meridian with its north pole pointing towards the geographical north. A neutral point is obtained at a distance of 12cm from the centre of the magnet. Find the magnetic moment of the magnet, when H=0.34 gauss.

Two concentric coils each of radius equal to 2 pi cm are placed at right angles to each other 3 ampere and 4 ampere are the currents flowing in each coil respectively. The magnetic induction in weber//m^(2) at the centre of the coils will be ( mu_(0) = 4 pi xx 10^(-7) Wb// A.m)

A vibration magnetometer consists of two identical bar magnets, placed one over the other, such that they are mutually perpendicular and bisect each other. The time period of oscillation in a horizontal magnetic field is 4 second. If one of the magnets is taken away, find the period of oscillation of the other in the same field.