Yes, any electrical conductor can serve as an electromagnetic insulator.
no there is one insulator that is not magnetic
distance is the only insulator
harddisks are constructed from an aluminum platter (conductor) coated with a magnetic metal oxide (insulator)floppy discs are constructed from a plastic sheet (insulator) coated with a magnetic metal oxide (insulator)however the function of computer disks in no way depends on the property of being a conductor/insulator, only on its ability to retain tiny magnetic domains while permitting them to be easily modified.
1-solids do not flow.2- they do not diffuse.
chalk is an insulator because heat does not flow through it as easily.
it is used as an insulator for temperature, electric, or magnetic charge. It is effective at all three.
Electromagnet is a type of magnet formed when current flows through a conductor or coil thus producing a magnetic around it. The magnetic properties are only present as long as the current is flowing through such a wire or coil. Insulator is any material that offer exceptionally very high resistance to the flow of current.
Simple: chalk dust has no magnetic properties whatsoever, and is an insulator. As such, the magnetic field will flow right past it as if it weren't there, so it cannot position itself accordingly.
insulator
It is an insulator.
its an insulator
insulator.