Three identical bar magnets each of magnetic moment $M$ are placed in the form of an equilateral triangle as shown. The net magnetic moment of the system is

What is the magnetism analog of charge in electricity ?

The distance between the poles of a horse shoe magnet is $0.1\, m$ and its pole strength is $0.01\, amp-m$. The induction of magnetic field at a point midway between the poles will be

A short bar magnet has a magnetic moment of $0.48\; J \;T ^{-1} .$ Give the direction and magnitude of the magnetic field produced by the magnet at a distance of $10 \,cm$ from the centre of the magnet on

$(a)$ the axis,

$(b)$ the equatorial lines (normal bisector) of the magnet.

Two short magnets of magnetic moment $1000$ $A{m^2}$ are placed as shown at the corn ers of a square of side $10\, cm$. The net magnetic induction at $P$ is....$T$

Two identical magnetic dipoles of magnetic moments $1.0 \,A-m^2$ each, placed at a separation of $2\,m$  with their axis perpendicular to each other. The resultant magnetic field at a point midway between the dipoles is