Electrical Engineering ⇒ Topic : Phasor Diagram of Sine Waves of Same Frequency

Lalan
 
Phasor Diagram of Sine Waves of Same Frequency Consider a sinusoidal voltage wave y and sinusoidal current wave i of the same frequency.Suppose the current lags behind the voltage by Φ. The two alternating quantities can be represented on the same phasor diagram because the phasors V_{m} and I_{m} [See Fig. a (i)] rotate at the same angular velocity co** and hence phase difference 4) between them remains the same at all times. When each phasor completes one revolution, it generates the corresponding cycle [See Fig. a (ii)]. The equations of the two waves can be represented as
figure (a) The following points may be noted carefully
 
 
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