They were first discovered in lodestone, by a farmer when the metal studs in his shoes stuck to the ground.
things like the electric bell uses electomagnrts
you find electromagnets in electric bells,telephone,t.v,radio sets all sound systems and sometimes in fans.
Electromagnetic eaves are waves that can travel through the vacuum of outer space. Microwaves, x-rays, and TV are all kinds of electromagnetic waves.
Ferromagnetic materials like iron, cobalt, or nickel make stronger electromagnets because they have high magnetic permeability. These materials concentrate magnetic field lines within the solenoid, increasing the strength of the electromagnet.
jv
Gloria Mejia invented it and she invented it in 1998
invented in 500BC before electricity was invented
The CD was invented in 2001 Thomas clamps invented it.
When and where were snickerdoodles invented Why were snickerdoodles invented
who invented the washboard?
Yes, the computer is invented.
Invented is the past participle of the verb invent. verb /past /past participle = invent /invented /invented