Find the relationship between the voltage phasor and current phasor for a resistor Consider the resistor shown here, with a sinusoidal current described as Using Ohm?s law together with the passive sign convention, the voltage drop for this resistor is given by Since both the voltage and current for the resistor are sinusoids, we can apply the phasor transform: The equation relating the voltage phasor and the current phasor for a resistor in the frequency domain is a form of Ohm?s law.
