Phasor Diagrams

Inside this lesson

Draw phasors as arrows on the complex plane with length equal to magnitude and angle equal to phase
Use tip-to-tail addition to visually verify KVL for series circuits and KCL for parallel circuits
Identify whether a circuit is inductive or capacitive from the relative placement of voltage and current phasors
Explain why the angle between the voltage and current phasors equals the power-factor angle

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Educational content covering topics typical of a first- and second-year electrical engineering curriculum. Not a substitute for accredited coursework, and not suitable for real circuit or system design without review by a licensed professional engineer.