# What are the properties of magnetic field lines of force?

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## What are the properties of magnetic lines of force?

General Properties of Magnetic Lines of Force

• They seek the path of least resistance between opposite magnetic poles. …
• They never cross one another.
• They all have the same strength.
• Their density decreases (they spread out) when they move from an area of higher permeability to an area of lower permeability.

## What are the 4 basic properties of the magnetic lines of force?

The magnetic lines of force has the following properties:

• Each line is a closed and continuous curve.
• They originate from the north pole and terminate at the south pole.
• They will never intersect each other.
• They are crowded near the poles where the magnetic field is strong.

## What are magnetic field lines Class 10th?

The path along which north pole moves in a magnetic field is called magnetic lines of force or magnetic field line. They show the direction and strength of magnetic field. … The direction of magnetic field is taken to be the direction in which a north pole of compass needle move inside it.

## What are 3 characteristics of a magnetic field produced by a current?

What are the three characteristics of a magnetic field produced by a current? It can be turned on and off, it can have its direction reversed, and it can have its strength changed.

## Why are there no two magnetic lines of force?

Reason – The two magnetic field lines do not intersect each other because if they do it means at the point of intersecting the compass needle is showing two different directions which are not possible.

## What is another term for magnetic lines of force?

The magnetic lines of force, or flux, leave the north pole and enter the south pole.

## What type of lines are the magnetic lines of force?

Magnetic lines of force are closed curves. Outside the magnet their direction is from north pole to south pole and inside the magnet these are from south to north pole.

## What is unit of magnetic field?

The International System (SI) unit of field intensity for magnetic fields is Tesla (T). One tesla (1 T) is defined as the field intensity generating one newton of force per ampere of current per meter of conductor: T = N · A-1 · m-1 = kg · s-2 · A-1.

## What is meant by magnetic field?

A magnetic field is a vector field that describes the magnetic influence on moving electric charges, electric currents, and magnetic materials. … Magnetic fields surround magnetized materials, and are created by electric currents such as those used in electromagnets, and by electric fields varying in time.

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## Where is the magnetic field the strongest?

The magnetic field is strongest at the center and weakest between the two poles just outside the bar magnet. The magnetic field lines are densest at the center and least dense between the two poles just outside the bar magnet.

## What is the formula for magnetic field?

The magnetic field formula contains the c o n s t a n t μ 0 constant^{mu_{0}} constantμ0. This is known as permeability of free space and has a v a l u e 0 μ value^{mu}_{0} value0μ = 4 π × 1 0 − 7 ( T ⋅ m 4pi times 10^{ -7} (T cdot m 4π×10−7(T⋅m/ A).

## How do you define field lines?

A field line is a graphical visual aid for visualizing vector fields. It consists of a directed line which is tangent to the field vector at each point along its length.

## Why do electric currents produce magnetic fields?

Because an electric current generally consists of moving electrons, a current in a wire produces a magnetic field. In fact, the wire acts as a magnet. Increasing the amount of current in the wire increases the strength of the magnetic field. You have seen how magnetic field lines can be drawn around a magnet.

## Do all magnetic fields have the same shape?

All magnetic fields do not have the same shape.

Electromagnets