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In the field of electrical control, electromagnets are widely used in the pre-installation parts of relays, contactors, solenoid valves, etc.

Electromagnets play a vital role in numerous fields due to their unique properties.

An electromagnet is a device that controls magnetism through an electric current. Its core characteristics include:

As early as the spring of 1820, Danish Johann Oersted discovered this principle by chance.

Electromagnets have many advantages: the presence or absence of magnetism can be controlled by turning current on and off;

When an iron core is inserted into a current-carrying solenoid, the core is magnetized by the solenoid's magnetic field.