8
Magnetic fields are produced by electric currents, which can be macroscopic currents in wires, or microscopic currents associated with electrons in atomic orbits.
Added 9/27/2017 8:55:47 AM
This answer has been confirmed as correct and helpful.
8
Electrons are the negatively charged particles of atom.
Added 9/27/2017 8:56:38 AM
This answer has been confirmed as correct and helpful.