The magnetic moment of a magnet is a quantity that determines the force that the magnet can exert on electric currents and the torque that a magnetic field will exert on it. A loop of electric current, a bar magnet, an electron, a molecule, and a planet all have magnetic moments.

## What is the formula of magnetic dipole moment?

Here m may be represented in terms of the magnetic pole strength density but is more usefully expressed in terms of the magnetization field as: m=∭MdV. The same symbol m is used for both equations since they produce equivalent results outside of the magnet. Thus we call this quantity μ→ the magnetic dipole moment.

## Can you calculate magnetic dipole moment of bar magnet how?

Answer: A magnetic dipole consists of two equal and opposite magnetic charges having pole strength +m & -m separated by finite distance ‘2l’. Magnetic Dipole Moment: The magnetic dipole moment is defined as the product of the pole strength and the magnetic length of a magnet.

## What is unit Pole?

: a unit of magnetic pole strength equal to the strength of a magnetic pole that repels an identical pole at a distance of one centimeter with a force of one dyne.

## What is pole strength of a bar magnet?

Pole strength is defined as the strength of a magnetic pole to attract magnetic materials towards itself. Pole strength is a scalar quantity.

## What are the four properties of a bar magnet?

They are: Attractive Property – Magnet attracts ferromagnetic materials like iron, cobalt, and nickel. Repulsive Properties – Like magnetic poles repel each other and unlike magnetic poles attract each other. Directive Property – A freely suspended magnet always points in a north-south direction.

## How can you show that magnetism in a bar magnet is strongest at its pole?

Sprinkle some iron dust(small particles of iron) on the cardboard and tap the corner slowly. You will see the iron dust arranging itself in pattern similar to the magnetic field of a bar magnet. You will see that the number of lines is very dense near the poles and very loose near the middle.

## Does the human body have a magnetic field?

The human body naturally has both magnetic and electrical fields. Right down to the tiny cells in our bodies, every part of our body has their own field.