Alternating Current Summary Notes

 

Typical AC Generator	AC Generation Sine Wave	Sine Wave Effective and Average Value

 

Summary of Concepts Discussed

ð AC is the most commonly used type of electricity.

ð AC consists of current flowing in one direction, then the other.

ð One revolution of an AC generator is called a cycle.

ð The two halves of a cycle are called alterations.

ð A hertz is one cycle per second

ð An ac generator produces a sine wave waveform

ð The peak to peak value is the vertical distance from one peak to the other peak

ð The effective value of AC is the amount of current that produces the same degree of heat in a given resistance as an equal amount of direct current.

ð The effective value for a sine wave is 0.707 times the peak value

ð The time required to complete one cycle is the period

ð The number of cycles in a specific period of time is the frequency

ð Frequency is the inverse of the period