It is the unit of resistance in continuous electricity and impedance in alternating electricity for the International System. The symbol is a 937; ( capital omega ) , although as with other units it usually has an exclusive and differentiated symbol ( that most graphic sources draw the same 128533; ) , and for the ohm it would be 8486; . The name is a tribute to the German physicist Georg Simon Ohm, creator of the law that also bears his name. See micron , °C , °F .