5.1.1 Electrical conduction When electrical transmits an electric current,it obeys the law following. Ohm's law:V=IR where R is the resistance of the material through which the current is passing.The units for V,l,and R are,respectively,volts (J/C), amperes(C/s),and ohms(V/A).5.1.1 Electrical conduction When electrical transmits an electric current, it obeys the law following. Ohm’s law: V=IR where R is the resistance of the material through which the current is passing. The units for V, I, and R are, respectively, volts (J/C), amperes (C/s), and ohms (V/A)