# What is magnetic length?

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Magnetic Length: The distance between the two magnetic poles is called the magnetic length. … A bar magnet consist of two equal and opposite magnetic pole separated by a small distance. Poles are not exactly at the ends.

## What is the difference between the real length and the magnetic length of a magnet?

The actual length of a magnet is called the geometric length of the magnet. The distance between the poles of a magnet is called the magnetic length of the magnet. The geometric length of the magnet is nearly 8/7 times the magnetic length of the magnet.

## What is effective magnetic length?

The effective length of a magnet is defined as the distance between the magnetic north pole and the magnetic south pole of a bar magnet. The grains in the bar magnet cannot form properly at the ends (not a continuous chain) and hence the geometic length is more than the magnetic length in the bar.

## How far do magnetic fields extend?

The bullet shaped magnetic bubble formed by the terrestrial magnetic field lines is called the Earth’s magnetosphere. The magnetosphere extends into the vacuum of space, on average, from approximately 60 000 kilometres sunward, and trails out more than 300 000 kilometres away from the Sun in the magnetotail.

## 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.

## What is pole strength of a magnet?

: a quantity corresponding to the amount of magnetic flux emanating from a given magnetic pole and expressed in terms of the unit magnetic pole.

## What is a magnetic field definition?

: the portion of space near a magnetic body or a current-carrying body in which the magnetic forces due to the body or current can be detected.

## What is the ratio of magnetic length and geometric length?

The distance between the locations of the assumed poles is called the magnetic length of the magnet. The distance between the ends is called the geometrical length. The magnetic length of a bar magnet is nearly 0.84 times that of the geometric length, which looks quite valid.

## What is magnetic meridian?

The magnetic meridian is an equivalent imaginary line connecting the magnetic south and north poles and can be taken as the horizontal component of magnetic force lines along the surface of the earth. Therefore, a compass needle will be parallel to the magnetic meridian.

## What is magnetic length of bar magnet?

In a bar magnet the poles of the magnet are situated a little distance inside the ends of the magnet. The distance between these two poles (north and south) is known as magnetic length. The actual length or the size of the magnet is called the geometric length.

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## Does an isolated magnetic pole exist?

A magnetic monopole does not exist. Just as the two faces of a current loop cannot be physically separated, magnetic North pole and the South pole can never be separated even on breaking a magnet to its atomic size. A magnetic field is produced by an electric field and not by a monopole.

## Where on a magnet is the magnetic field strongest?

The magnetic field generated by any magnet is always strongest at either pole. The magnetic force is equally as strong at both the north and south pole.

## Is the Earth’s core magnetic?

The core of the Earth is also an electromagnet. Although the crust is solid, the core of the Earth is surrounded by a mixture of molten iron and nickle. The magnetic field of Earth is caused by currents of electricity that flow in the molten core.

## How magnetic field is created?

Any current (movement of electrical charge) will create a magnetic field. Certain materials are capable of realigning the angular momentum of their electrons, and iron is one of them. When the angular momentum of electrons gets aligned, an external magnetic field is created.