by Macayla Perkins
is the magnetic influence of electric currents and magnetic materials
how do magnetic poles interact- whether two magnetics attract or repel each other depends on which poles are brought close together
is a magnetic material which has a uniform magnetization
one of the four fundamental interactions in nature
has innumerable physical instances
why are some materials magnetic and some are not- you might have no noticed that a magnet will not attract all metal objects
how do magnetic domains model magnetic behavior?
when domains align, their magnetic fields add together ad create a magnetic field inside the material
how do moving electric charges and magnets interact?
the electric current must produce a magnetic field around the wire and that the direction of the field around the wire and that direction of the field depends on the direction of the current
what is the electromagnetic force?
is what makes magnets useful
how does an electro motor operate?
is a device that changes electrical energy into mechanical energy