9300 electromagnet

Electromagnet has many advantages: electromagnet magnetic whether can use on, off current control; The magnitude of the magnetism can be controlled by the strength of the current or the number of turns of the coil. The magnitude of magnetism can also be controlled by changing the resistance control current; Its magnetic poles can be controlled by changing the direction of the current, and so on. Namely: magnetic strength can be changed, magnetic whether or not can be controlled, the direction of the magnetic pole can be changed, magnetic due to the disappearance of the current and disappear.

Electromagnet is an application of current magnetic effect, which is closely related to life, such as electromagnetic relay, electromagnetic crane, maglev train, electronic door lock, intelligent channel turns, electromagnetic flowmeter, etc.