Magnetic force, attraction or repulsion that arises between electrically charged particles because of their motion. It is the basic force responsible for such effects as the action of electric motors and the attraction of magnets for iron. Learn more about the magnetic force in this article.

Magnetic phenomena are universal in nature. Vast, distant galaxies, the tiny invisible atoms, humans and beasts all are permeated through and through with a host of magnetic fields from a variety of sources. The earth’s magnetism predates human evolution.

2024年7月23日 · What is a Magnetic Force? When a charged particle moves in a magnetic field with a specific velocity, it experiences a deflection due to a force acting on it. Aside, two current-carrying wires, when placed close to one another, share a similar force. It is known as a magnetic force and forms an integral part of electromagnetism.

2025年1月11日 · Magnetism - Magnetic Fields, Forces, & Materials: A magnetic field B imparts a force on moving charged particles. The entire electromagnetic force on a charged particle with charge q and velocity v is called the Lorentz force (after the Dutch physicist Hendrik A. Lorentz) and is given by The first term is contributed by the electric field.

5 天之前 · Magnetism - Magnetic Fields, Forces, Materials: All matter exhibits magnetic properties when placed in an external magnetic field. Even substances like copper and aluminum that are not normally thought of as having magnetic properties are affected by the presence of a magnetic field such as that produced by either pole of a bar magnet.

Matter can acquire a magnetization (i.e., a magnetic dipole moment per unit volume) when atomic dipole moments align. There are three main types of materials: very weak magnetization opposite an external applied magnetic field, and lose their alignment when the field is removed.

2024年4月9日 · Magnetism is a phenomenon induced by the force exerted by magnets, which produces fields that attract or repel other metallic objects. It occurs as a result of electrically charged particles.

Magnetism is the class of physical attributes that occur through a magnetic field, which allows objects to attract or repel each other. Because both electric currents and magnetic moments of elementary particles give rise to a magnetic field, magnetism is one of two aspects of electromagnetism.

Some materials are attracted toward magnetic fields; others are repelled. Unlike the electrical effect in matter, which always causes dielectrics to be attracted, there are two signs to the magnetic effect.

2023年2月15日 · We call it the magnetic force. Like the electric force, we will explain it in terms of a vector field. And as with the electric force, this will require the two-step theory of first explaining how a charge acts as a source for the field, and then how another charge reacts to being in the presence of a field.