Is a type of electromagnetic devices that work similar to a relay consists of a coil of iron bars around a thousand inside consists of a magnetic field on the lower sets series?
It is a type of electromagnetic The principle is similar to the relay. Consists of a coil wrapped around a rod that is equipped with a magnetic bottom.
As a kind of electromagnetic equipment The working principle is similar to a relay. Consists of a coil that thousand live around the steel rods inside consists of magnet series on with a bottom.