About Coil

Coil generally refers to a conductive coil in industrial products. Conductive coils can act as magnets by passing electricity through them and generating magnetic flux. Also called a solenoid. Solenoid also refers to a solenoid valve, which is a valve that opens and closes electromagnetically with electromagnetic force. A solenoid is a device that has a mechanism that applies force to a part by the electromagnetic force of a coil and causes it to move linearly to do work. Such a device is called a solenoid actuator. A coil is also an inductor. In this case, it means equivalent to L [H] in the basic electrical circuit LCR. L is inductance, and H is the unit of henry. It expresses the property of the current flowing through the coil that it is easy for direct current to pass through and it is difficult for alternating current to pass through.