phones and electric motors definitely do!
Yes it did
All electric motors are electromagnets.
Permanent magnets or electromagnets are typically used in electric motors. Permanent magnets provide a constant magnetic field, while electromagnets have a magnetic field that can be controlled by the flow of electric current.
Electric motors contain electromagnets that transform electrical energy into mechanical energy to generate motion. These electromagnets interact with a permanent magnet to create a rotating force that drives the motor.
Two common devices that use electromagnets are electric motors and loudspeakers. Electric motors use electromagnets to generate movement by converting electrical energy into kinetic energy, while loudspeakers use electromagnets to convert electrical signals into sound waves.
Many electrical and electronic devices use electromagnets, including telephones, sound speakers, maglev trains, junkyard cranes, and doorbells. Electric motors create an electromagnetic field around a permanent magnet, as do the generators used to create electric power.
Some devices that use electromagnets include electric motors, speakers, relays, and MRI machines. Electromagnets are used in these devices to convert electrical energy into mechanical motion or to produce a magnetic field for various applications.
Electromagnets are used in various applications such as electric motors, MRI machines, loudspeakers, magnetic separation in recycling facilities, and in magnetic levitation trains for transportation.
Magnets are used to make electric motors and generators. Without these electric motors and generators we would not have telephones, lights, electric heat, television, or computers. Some items that use electromagnets are: Maglev trains, car crushers, scrap metal sorters, telephones, computers, doorbells, tape recorders etc. Magnets are also used in compasses to show attraction and repulsion. Magnetized compasses are used to detect underground metal pipes.
Electromagnets are temporary magnets that produce a magnetic field when an electric current flows through a coil of wire. They are widely used in various applications such as electric motors, MRI machines, and telecommunications devices.
Electromagnets are used in a range of industries, including manufacturing, transportation, healthcare, and energy. They are commonly found in electronics, automotive applications, MRI machines, and electric generators.
Electromagnets are used in various applications such as MRI machines in the medical field, speakers and headphones in audio devices, and electric motors and generators in industrial machinery. They are also used in magnetic levitation trains, particle accelerators, and in various electronic devices like relays and solenoids.