Magnetic field definition

What is the simple definition of a magnetic field? How to use magnetic field in a sentence. English dictionary definition of magnetic field. A condition found in the region around a magnet or an electric current, characterized by the existence of a detectable magnetic force at every point in.

The geometric shapes of the magnetic flux lines produced by moving charge carriers (electric current) are similar to the shapes of the flux lines in an electrostatic field.

But there are differences in the ways electrostatic and magnetic fields interact with the environment. The effects of magnetic fields are commonly seen in permanent magnets, which pull on magnetic materials and attract or repel other magnets. They exert forces on nearby moving electrical charges and torques on nearby magnets. The magnetic field B is defined in terms of force on moving charge in the Lorentz force law. Magnetic fields are regions around a magnet, where the force of magnetism acts.

Learn what magnetic fields are and how to calculate them. See also under irradiation. The definition of a magnetic field is a place in space near a magnet or an electric current where a physical field is created from a moving electric charge that creates force on another moving electric charge.

A magnetic field , like an electric field , is due to the polar nature of electric or magnetic charges. Field lines converge or come together at the poles. You have probably heard of the poles of the Earth.

Those poles are places where our planets field lines come together. All magnetic objects have field lines and poles. Furthermore, the symbol of the magnetic field strength happens to be ‘H’.

Definition of magnetic force. They exert a directional force that varies in strength depending on the nature of the object or system producing the field. It can be looked at as sort of a force field that encompasses the Earth and protects our planet from solar radiation.

Without a magnetic field , cosmic rays and radiation would enter our planet,. But, the magnetic field is the field of current that attracts and repels the magnet. Magnetism is caused by the electromagnetic force, which is one of the four fundamental forces of nature. Any moving electric charge ( electric current) generates a magnetic field perpendicular to it. In addition to current traveling through a wire, magnetism is produced by the spin magnetic moments of elementary particles,.

Magnetic poles are the points where the magnetic field lines begin and end. The Magnetic Field produced by the electric current can either be microscopic or macroscopic current.

Magnetic Field is a region surrounded by a magnetic material or a moving electric charge within which the force of magnetism acts. In physics, the magnetic field is a field that passes through space and which makes a magnetic force move electric charges and magnetic dipoles. Each segment of current produces a magnetic field like that of a long straight wire, and the total field of any shape current is the vector sum of the fields due to each segment. H, caused by the current forces some or all of the atomic magnets in the material to align with the field.

The net effect of this alignment is to increase the total magnetic fiel or magnetic flux density B. Of primary concern, however, is the magnetomotive force needed to establish a certain flux density, B in a unit length of the magnetic circuit.