So that we can use the computer, watch the television and fans. And other things that need electricity.
nothing
A safety device that uses an electromagnet to shut off the circuit is called a contactor.
Probably a metal hooker
An electric motor uses an electromagnet to convert electrical energy into kinetic energy. The electromagnet creates a magnetic field that interacts with a permanent magnet, causing the motor to spin and generate mechanical motion.
many people uses an electromagnet when working.
Solenoid valves, magnetic contactors, motors.
True .
A galvanometer is a device that uses an electromagnet to measure electric current. It works by converting the current passing through it into a proportional mechanical deflection of a pointer on a scale.
A loud speaker can use electro magnets and i hope this helps =)
it uses electric force
The comon bar magnet has two poles, and the electromagnet can be turned on and off also the electromagnet uses electricity to create a magnetic field in the first place. so the difference is normal magnet cant be turned on and off but the electromagnet can. does that answer ur question?
An electromagnet is not a resistor; they are two different components in an electrical circuit. An electromagnet uses electric current to create a magnetic field, while a resistor resists the flow of electric current, which causes a voltage drop across it.