# Where do magnetic fields exist?

Where do magnetic fields exist? Magnetic field lines are continuous, forming closed loops without beginning or end. They go from the north pole to the south pole. Does magnetic field really exist? However, purely magnetic

## Where do magnetic fields exist?

Magnetic field lines are continuous, forming closed loops without beginning or end. They go from the north pole to the south pole.

### Does magnetic field really exist?

However, purely magnetic fields do exist. Therefore, magnetic fields are more than just relativistic electric fields. The correct statement is that electric fields and magnetic fields are both fundamental, both are real, and both are part of one unified entity: the electromagnetic field.

What is an example of a magnetic field?

Examples of magnetic force is a compass, a motor, the magnets that hold stuff on the refrigerator, train tracks, and new roller coasters. All moving charges give rise to a magnetic field and the charges that move through its regions, experience a force.

Can a magnetic field be zero?

In truth the magnetic field never perfectly goes to zero. The same is also true of the toroid. A current carrying loop arranged in the form of a twisted pair of cables with same diameter, will produce a nearly zero magnetic field.

## Is the magnetic field ever zero?

Learn more physics! A: It’s not really true that magnetic field lines cannot cross, but where they do, the magnetic field strength has to be zero. Here’s why: A magnetic field line is that path in space that points in the direction of the magnetic field at every point along it.

### What is difference between M and H?

The definition of H is H = B/μ − M, where B is the magnetic flux density, a measure of the actual magnetic field within a material considered as a concentration of magnetic field lines, or flux, per unit cross-sectional area; μ is the magnetic permeability; and M is the magnetization.

What is magnetic force in simple words?

Magnetic force, attraction or repulsion that arises between electrically charged particles because of their motion. The magnetic force between two moving charges may be described as the effect exerted upon either charge by a magnetic field created by the other.

Where is a magnetic field strongest?

the poles
The magnetic field is strongest at the poles, where the field lines are most concentrated.

## Where is a magnetic field 0?

There’s only one direction to the magnetic field at any place at any time, so this doesn’t happen. The magnetic field in the center of that thing will be zero, but magnetic field lines will point in towards the center from the left and right, and field lines will point away from the center up and down.

### What are facts about magnetic fields?

Facts about Magnetic Fields 1: the force. The permanent magnet generates force called magnetic field when it pulls the nickel, cobalt and iron. They are considered as the ferromagnetic materials. Magnetic field is important in the development of technology.

How do you create a magnetic field?

How to Create a Magnetic Field. Wrap the wire slowly and firmly around the iron bar. This is a lot of wire and it will take some time. Wrap the wire tightly and be sure to wrap the wire only in one direction. The direction of the wrap dictates the direction of the magnetic flow. Leave about 2 feet of wire unwrapped at each end. Strip about 3 inches…

What is the formula for magnetic field?

The Formula for the magnetic field in SI is B = µ ○ (H+M) and in CGS is B = H+4π M. A wire carrying a DC current or permanent magnet produces magnetostatic (Stationery) field and its magnitude and direction remain same.

## What produces a magnetic field?

Magnetic Field. Magnetic fields are produced by electric currents, which can be macroscopic currents in wires, or microscopic currents associated with electrons in atomic orbits.