ocr: Geog Simon Ohm 1787-1854), EI IR German -hysicist, discovered that the ratio. of the ontage applled. to IPR VWR sclasedaircut to the. current in the. orcunt is. 8. constant. WATTS VOLTS This constant is the resistance of the circuit. This is known as the E Uhm's lav of resistance. 2 This H relationship is of utmost importance in the study of current electricity. E=F Pressure in Yolts DC - AMPS OHMS I=0 current in Amperes R= =F Resistance in Ohms R I R W= Power in Watts W Ju - FLIGHT E ENGINEERING C 1987 R Program transference by GEnie Ta