The electromagnet is a type of magnet in which magnetic field is produced by passing an electric current. The magnetic field disappears when the current ceases to pass through.
Educational phase: fixation
- connecting wires
- paper clips.
Connect the solenoid to the battery through the switch.
Below we deploy eletromagnet paperclip.
Closes switch. Staples are attracted to the electromagnet.
When electric current passes through the loop, it creates a magnetic field. The orientation of this field can be determined by the right-hand rule.
The electromagnet is a coil with a core of magnetically soft steel, used to create temporary magnetic field. The principle consists in the conversion of the electromagnetic field energy into mechanical energy. The magnetic field of the electromagnet is the stronger, the greater the electrical current through the coil and the coil has more turns.
Application in practice
Electromagnet is used as an electric bell in circuit breakers, contactors, in the metallurgical industry, collection of scrap metal or electromagnetic relays. Electromagnet is used, among other things, also in the automotive industry such as the crankshaft speed sensor, or brake tram cars, machine tools and healthcare.