# What is magnetic field and field line?

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Magnetic field lines are a visual tool used to represent magnetic fields. They describe the direction of the magnetic force on a north monopole at any given position. The density of the lines indicates the magnitude of the field.

## What is magnetic field and field lines Class 10?

A magnetic field is represented by a series of lines around a magnet. The path along which north pole moves in a magnetic field is called magnetic lines of force or magnetic field line. … The direction of magnetic field is taken to be the direction in which a north pole of compass needle move inside it.

## What is the difference between magnetic field and magnetic field lines?

Magnetic field lines can never cross, meaning that the field is unique at any point in space. Magnetic field lines are continuous, forming closed loops without beginning or end. They go from the north pole to the south pole.

## What is a magnetic field pattern?

Field line patterns show the direction and shape of a magnetic field. These diagrams are made using a plotting compass . … A magnetic field is also created when an electric current moves through a coil of wire. Plotting compasses can be used to show the shape and direction of the magnetic field created by a coil of wire.

## What is meant by a field line?

1. field line – an imaginary line in a field of force; direction of the line at any point is the direction of the force at that point.

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## What is called magnetic field?

A magnetic field is a vector field that describes the magnetic influence on moving electric charges, electric currents, and magnetic materials. … The effects of magnetic fields are commonly seen in permanent magnets, which pull on ferromagnetic materials such as iron, and attract or repel other magnets.

## Which is stronger magnetic field or electric field?

The way in which charges and currents interact with the electromagnetic field is described by Maxwell’s equations and the Lorentz force law. The force created by the electric field is much stronger than the force created by the magnetic field.

## Why do magnetic fields have lines?

Magnetic field lines are a visual tool used to represent magnetic fields. They describe the direction of the magnetic force on a north monopole at any given position. … One useful analogy is the close connection between magnetic monopoles and electric charges.

## What is a magnetic field caused by?

When you rub a piece of iron along a magnet, the north-seeking poles of the atoms in the iron line up in the same direction. The force generated by the aligned atoms creates a magnetic field. The piece of iron has become a magnet. Some substances can be magnetized by an electric current.

## Can you see a magnetic field?

A magnet creates a magnetic field around it. You cannot see a magnetic field, but you can observe its effects. A force is exerted on a magnetic material brought into a magnetic field. The force is a non-contact force because the magnet and the material do not have to touch each other.

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## What happens in a magnetic field?

Magnetic fields occur whenever charge is in motion. As more charge is put in more motion, the strength of a magnetic field increases. Magnetism and magnetic fields are one aspect of the electromagnetic force, one of the four fundamental forces of nature.

## How do you plot a magnetic field?

Magnetic fields can be mapped out using small plotting compasses :

1. place the plotting compass near the magnet on a piece of paper.
2. mark the direction the compass needle points.
3. move the plotting compass to many different positions in the magnetic field, marking the needle direction each time.

## What are the properties of field line?

Properties of Electric Field Lines

• The field lines never intersect each other.
• The field lines are perpendicular to the surface of the charge.
• The magnitude of charge and the number of field lines, both are proportional to each other.

## What are electric field lines used for?

Electric field lines reveal information about the direction (and the strength) of an electric field within a region of space. If the lines cross each other at a given location, then there must be two distinctly different values of electric field with their own individual direction at that given location.

## Is an electric field a vector field?

As the electric field is defined in terms of force, and force is a vector (i.e. having both magnitude and direction), it follows that an electric field is a vector field.