... Electrons . ... 4a. Electric Fluid . ... First electric currents were brought up, in connection with Oersted's work. ... An electric current is essentially the continuous flow of electric charge. ... By long tradition, the direction of the electric current is defined as the direction in which positive charges move. ... Currents that flow may depend on such voltages, but don't look to Ohm's law for guidance, because the flow of current is primarily dictated by magnetic fields, which makes a...