ABSTRACT

At the end of this chapter, you should be able to:

• determine the resultant of two phasors by graph plotting • determine the resultant of two or more phasors by drawing • determine the resultant of two phasors by the sine and cosine rules • determine the resultant of two or more phasors by horizontal and vertical components

There are a number of instances in engineering and science where waveforms have to be combined and where it is required to determine the single phasor (called the resultant) that could replace two or more separate phasors. Uses are found in electrical alternating current theory, in mechanical vibrations, in the addition of forces and with sound waves.