What Is a Magnetic Field?


A magnetic field is the mathematical expression of the field of influence for magnetic materials and electric currents. A magnetic field is usually expressed in the magnitude and the direction in the same way like a vector field.
Q&A Related to "What Is a Magnetic Field"
Earth's magnetic field is caused by the molten iron core churning inside. The magnetic field helps to protect the planet from harmful radiation. Bedini circuits use the magnetic field
Imagine a circle of people with their arms extended into the center of the circle. Now, put a person inside the circle standing on a floating platform. The single person wants to
The magnetic field around a wire is. Note that the radius of the wire does not matter if the current density is uniform.
A magnetic field line can be thought of as consisting of lines of force. The forces of magnetic attraction and repulsion move along the lines of force. These can be illustrated to
4 Additional Answers
Ask.com Answer for: what is a magnetic field
magnetic field
a region of space near a magnet, electric current, or moving charged particle in which a magnetic force acts on any other magnet, electric current, or moving charged particle.
Source: Dictionary.com
A magnetic field is a field which exerts magnetic force on substances that are sensitive to magnetism. A classic example of a magnetic field is the field formed by an iron magnet; to see how the energy in such a field works.
A magnetic field is a field of force produced by moving electric charges. It is also produced by electric fields that vary in time and by elementary particles that possess their own 'intrinsic' magnetic field. It is a relativistic effect which is usually modelled as a spin of the particle.
A magnetic field is the energy force that surrounds the poles of a magnet. The field is created when charges move, in the same way electrical current moves through a length of wire.
Explore this Topic
A magnetic field is a vector field that surrounds a magnet. You can see a magnetic field if you place a magnet under a piece of paper sprinkled with iron filings ...
A magnetic field is caused by the movement of energy. For example, when electricity moves through a wire, a magnetic field forms around the wire. Energy currents ...
You can make an magnetic field with a simple electromagnet. To make an electromagnet simply wrap wire around a large steal bolt. Connect the ends of the wires ...
About -  Privacy -  Careers -  Ask Blog -  Mobile -  Help -  Feedback  -  Sitemap  © 2014 Ask.com