# How does the pole strength and magnetic moment?

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How does the (i) pole strength and (ii) magnetic moment of each part of a bar magnet change if it is cut into two equal pieces along its length? Each piece is a magnet with reduced pole strength and reduced magnetic moment. (i) Pole strength of each new magnet becomes half of original magnet.

## How does the pole strength and magnetic moment of each part?

The pole strength of each piece when a bar magnet is cut into two equal halves perpendicular to its length is the same as the pole strength of the original bar magnet. However, the magnetic moment of each piece is half the magneticmoment of the original bar magnet.

## What is the pole strength of a magnet?

Pole strength (m) : The strength of a magnetic pole to attract magnetic materials towards itself is known as pole strength. (i) It is a scalar quantity. (ii) Pole strength of N and S pole of a magnet is conventionally represented by +m and –m respectively.

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## What is the rule of magnetic pole interaction?

It is clear that the two ends, or poles, of the magnets behave differently and there is a simple rule to describe their interaction: identical poles (two north or two south) repel. opposite poles (north and south) attract.

## How does the pole strength?

How does the (i) pole strength and (ii) magnetic moment of each part of a bar magnet change if it is cut into two equal pieces along its length? Each piece is a magnet with reduced pole strength and reduced magnetic moment. (i) Pole strength of each new magnet becomes half of original magnet.

## What is magnetic dipole moment formula?

Definition. It can be defined as a vector linking the aligning torque on the object from an outside applied a magnetic field to the field vector itself. The relationship is written by. tau=m×B. Where τ is the torque acting on the dipole, B is the outside magnetic field, and m is the magnetic moment.

## What are the 4 properties of 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.

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## Which bar is magnetic?

Alnico and Neodymium Bar Magnet

The primary components of Alnico magnets are aluminium, nickel, cobalt, and iron.

## Can we isolate a magnetic pole from the magnet?

There is never an isolated pole (a monopole). All magnets attract iron, such as that in a refrigerator door. However, magnets may attract or repel other magnets. Experimentation shows that all magnets have two poles.

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## Why is a magnet strongest at its pole?

For a magnet, the flux lines repel each other so the field will be weaker at the sides. But they are concentrated at the poles, where they originate, so the field is stronger. Air is a poor conductor of flux. To get a similar magnetic field from the solenoid, we have to add a iron core.

## What happens to the poles of a magnet if you break it?

When we break the magnets then it will form two- new magnets which are having its own north and south pole.

## What is the dimensional formula of pole strength?

Pole strength, m=2lMagnetic moment=mAm2=Am.

## How is magnetic pole strength measured?

The intensity of a magnetic field, measured in Gauss or Teslas (10,000 Gauss = 1 Tesla), is also a common measurement of a magnets strength as this is a representation of the density of a magnetic field produced by a magnet, known as flux density.

## What is meant by magnetic moment?

The magnetic moment is the magnetic strength and orientation of a magnet or other object that produces a magnetic field. … The magnetic dipole moment of an object is readily defined in terms of the torque that object experiences in a given magnetic field.