You get an electro-magnet. If the current only flows in one direction (Direct Current) then you get a magnet.
I magnetised a big steel penknife that I had at the age of 14. Using 240 volt AC (Alternating Current) mains current I wired it up with a small piece of fuse wire in the circuit. The theory was that the current would flow in one direction and then blow the fuse before it had a chance to flow back the other way. And the knife was magnetised.
It worked! But the fuse I used was stronger than the fuse in the fuse box, so I blew all the power in the house. My father was furious, and amazed that the instructions were there in a book he'd given me "100 things a Boy can Do before he dies".
(Actually just "100 Things a Boy can Do"!!)
A coil of wire or a coil in the shape of a cylinder is a typical shape for an electromagnet (or a solenoid). The strength of the magnetic field of an electromagnet can be increased significantly if the coil is wrapped around an iron core.
An electromagnet.
electromagnet
It creates a magnet and magnetism.
It makes an electromagnet.
"Electromagnet"
It creates a magnet and magnetism.
Its called a ELECTROMAGNET! hopes this helps =)
Coils of wire wrapped around a ferromagnetic core make up a motor's armature. It carries an electrical current and rotates within a magnetic field.
a magnet
a magnet
It makes an electromagnet.
"Electromagnet"
It creates a magnet and magnetism.
It creates a magnet and magnetism.
That can be a 'solenoid' or an 'electromagnet'.
Its called a ELECTROMAGNET! hopes this helps =)
Electromagnetism
A coil of wires wrapped around a core is an electromagnet.
Coils of wire wrapped around a ferromagnetic core make up a motor's armature. It carries an electrical current and rotates within a magnetic field.
an inductor