he electromagnet works

Solenoid is energized to produce a magnetic, like a magnet can be adsorbed ferrous objects. Electromagnet can be applied to a variety of areas, such as large amusement equipment, automotive, aerospace, industrial, and other undertakings. Common applications such as solenoid: punch the time clock at work, the supermarket cash register, Drawer magnets  enter the number of units of automatic doors. These electromagnets by the magnetic field energy is converted, and then the magnetic force generated by the magnetic field acting on the center of the electromagnet core, the core movements. The main application is the core of the electromagnet forces generated by movement. This can be done a few grams minimum force tens of grams, in theory, can do infinitely large, basically able to do almost a hundred kilograms. The magnetic effect of the current is the current that the magnetic field around the. The electromagnet is energized, the current through the coil generates a magnetic field, the magnetic field generated in the core operation.