PHASORS AND PHASOR DIAGRAM-
The co-planar vectors which represents sinusoidal time varying quantities like alternating current or alternating voltage are known as phasor and the graphical representation of these quantities for the ac circuit is known as phasor diagram.
In another words we can say when AC or alternating voltage represented as rotating vectors in a graph is known as phasor diagram .
- Phasors are represented by the arrows rotating anticlockwise .
- The length of the arrow represent the peak current or peak voltage.
- Phasor diagram represents the phase relation between alternating current and voltage
Representation of phasor diagram for an ac source-
Phasor diagram when ac circuit containing only resistance –
Phasor diagram when ac circuit containing only capacitor-
Phasor diagram when ac circuit containing only inductor-