1-6
Figure 1-3.—Generation of sine-wave voltage.
At position 2, the sine of 60 degrees is 0.866 and an output of 86.6 volts is developed.
This relationship is plotted through 360 degrees of rotation. A continuous line is drawn through the
successive points and is known as 1 CYCLE of a sine wave. If the time axis were extended for a second
revolution of the vector plotted, you would see 2 cycles of the sine wave. The 0-degree point of the
second cycle would be the same point as the 360-degree point of the first cycle.
Q-5. What waveform is the basis of all complex waveforms?
Q-6. What is the purpose of using vectors?
Q-7. What is the trigonometric ratio for the sine of an angle?
