Resistance and Ohm s Law Ohm s law could be viewed as the definition of a fixed resistor In that case impedance generalizes Ohm s law If Ohm s law is a behavioral relationship then it says things like V t I t R for any ideal voltage or current source not must sinusoidal AC Because it is called a law I have always thought Ohm s law referred to a behavioural relationship otherwise it would be called Ohm s definition But maybe I am confused 08 54 26 June 2007 PDT