Electrical Installation | Form Three – TOPIC 1 | Building Simple Ac Circuits
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The vertical axis on a phasor diagram could be either the Voltage or the current, depending on the phasor that is being examined. In addition, several quantities can be depicted on the same phasor diagram. For example, both the current and the
voltage is shown in the diagram of Figure. Since they have the same frequency and are in phase, their phasors point in the same direction and rotate together. The relative lengths of the two phasors are arbitrary because they represent different quantities; however, the ratio of the lengths of the two phasors can be represented by the resistance, since one is a voltage phasor and the other is a current phasor.