Search results
A magnetic field (sometimes called B-field[1]) is a physical field that describes the magnetic influence on moving electric charges, electric currents, [2]: ch1 [3] and magnetic materials.
Since magnetic forces act at a distance, we define a magnetic field to represent magnetic forces. A pictorial representation of magnetic field lines is very useful in visualizing the strength and direction of the magnetic field.
9 mar 2022 · A magnetic field is an invisible force field generated by a magnet (like bar magnet and horseshoe magnet), moving electric charge (like current-carrying wire, toroid, and solenoid), spinning electrons, and changing electric field. The force due to a magnetic field is called magnetic force.
9 paź 2024 · Magnetic field, a vector field in the neighborhood of a magnet, electric current, or changing electric field, in which magnetic forces are observable. Magnetic fields such as that of Earth cause magnetic compass needles and other permanent magnets to line up in the direction of the field.
magnetic field strength, the part of the magnetic field in a material that arises from an external current and is not intrinsic to the material itself. It is expressed as the vector H and is measured in units of amperes per metre.
Magnetic field strength, often represented by the symbol 'H', is a measure of the intensity of a magnetic field produced by an electric current or a magnet. It describes how strong the magnetic effect is in a given area and is critical for understanding how magnetic fields interact with materials, such as currents and magnetic forces acting on ...
8.2 The Definition of a Magnetic Field To define the magnetic field at a point, consider a particle of charge q and moving at a velocityv. Experimentally we have the following observations: G (1) The magnitude of the magnetic force FB G exerted on the charged particle is proportional to both v and q. (2) The magnitude and direction of FB G ...
