DongGuan Courage Magnetoelectric Technology Co.,Ltd

Industry news

The Principle of Magnets Adsorption and Repulsion, Suggested Collection

Introduction of Graphics and Texts of the Principle of Magnets'Phase Absorption and Repulsion
The magnets written in middle school physics books have S poles and N poles. If the S poles or N poles of two magnets are put together, there is repulsion between them. If one N pole and one S pole are put together, there is attraction between them.
The force attracting or repelling each other is the magnetic force, which is produced in the magnetic field. In order to explain the magnetic field, Faraday introduced the concept of magnetic induction line. The magnetic induction line is a closed curve which is artificially prescribed but actually does not exist. Inside the magnet, from S to N, and outside, from N to S. The magnetic induction line is attractive in the same direction and repulsive in the opposite direction. When there is a certain angle, the magnet tends to rotate in the same direction as the magnetic induction line. Generally speaking, magnetic induction lines do not exist objectively. They are only concepts introduced by people to study the force in magnetic field and electromagnetic induction phenomena.
Quantum electrodynamics considers that the essence of electromagnetic interaction force (isotropic repulsion, heterosexual attraction) is the result of the continuous exchange of photons between two particles. What happens when two electrons get close to each other and eventually bounce off because of electromagnetic forces? It turns out that the two electrons are constantly exchanging photons. Imagine two people on the skating rink, who keep throwing a ball around, throwing it from one person's hand to another, so that they must be farther and farther away, as if there was a repulsion between them. In the electromagnetic force, this ball is photon! So what about homosexual attraction? You can imagine two people standing back-to-back, throwing the ball on the wall facing each other and bouncing back into each other's hands, which seems to have a kind of attraction to keep them close together.

keyword tags

Article link:

Copyright Notice:Copyright statement: Courage Motor's magnetic steel manufacturers follow the industry norms, and the reprinted articles indicate the author and source. At the same time, the original articles edited on this site must indicate the source when reprinting.


Contact: Emily Feng

Phone: 135-5660-1560

Tel: 0769-23388351/2


Add: No. 302, No. 1, Longtong Road, Xinhe Community, Wanjiang District, Dongguan City, Guangdong Province, China