wire, battery, iron core, compass, or current
its either battery or current, dont no which one though
2006-09-15 09:09:11 · 8 answers · asked by Anonymous in Science & Mathematics ➔ Physics
An electromagnet is a type of magnet in which the magnetic field is produced by a flow of electric current. The magnetic field disappears when the current ceases.
2006-09-15 09:11:54 · answer #1 · answered by DanE 7 · 2⤊ 0⤋
You need wire and current and nothing less. However the current source could be the battery.
2006-09-15 16:42:54 · answer #2 · answered by Buffertest 3 · 0⤊ 0⤋
Hi. You need both. But it's the current that aligns the fields.
2006-09-15 09:10:58 · answer #3 · answered by Cirric 7 · 0⤊ 0⤋
battery or other source of electricity supplies the energy required for a current to flow
2006-09-15 09:11:59 · answer #4 · answered by cars_o_holic 3 · 1⤊ 0⤋
because the earth rotates, the outer middle, composed of liquid iron, "sloshes" slightly, setting up large, sluggish-shifting eddies. The rotation of those eddies motives the magnetic container.
2016-11-27 00:53:56 · answer #5 · answered by winni 4 · 0⤊ 0⤋
I think current is the more correct answer in this case.
2006-09-15 09:11:30 · answer #6 · answered by Megan C 1 · 0⤊ 0⤋
current
2006-09-15 09:12:15 · answer #7 · answered by Jason A 2 · 1⤊ 0⤋
yes, it's called Earth
2006-09-15 09:16:35 · answer #8 · answered by kapute2 5 · 0⤊ 1⤋