Science Buddies: "Ask an Expert"

My question is, What is the effect of electricity on an electromagnet?, I really do not know what to do I was just assinged to do this question so please help

Your question contains part of the answer... an electromagnet is just that!!! Any time an electrical current is flowing, a magnetic field is generated, absolutely every time. An 'electromagnet' is just a wire wrapped into a coil with an electric current running through the wire.

Try searching on electromagnets...

Here's a really good tip for a really good grade on your assignment, read up on Maxwell's Field Equations, which describe how moving charge, and its associated electric field, creates a magnetic field... and how moving magnetic fields create an electric field, electromotive force (voltage) in a conductor... or even in a vacuum, as in "electro-magnetic radiation", another word for "light".

Light is just a moving electric field which causes a moving magnetic field which causes a moving electric field which causes a moving magnetic field which causes a moving electric fields... you get the idea.

You may also wish to read up on "electron spin", which is how electrons that aren't moving in bulk, still spin in circles to make magnetic fields in certain metals and ceramics.

Good Luck!