Sinusoidal alternating wave forms
The alternating wave forms available from the
commercial supplies are as
The term alternating means that the wave form
alternates between two levels in a certain time
sequence.
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Sinusoidal Alternating Wave Forms-Electrical Circuit Analysis-Lecture Slides, Slides of Electrical Circuit Analysis
This lecture was delivered for Electrical Circuit Analysis course by Prof. Dhananjay Malhotra at Shree Ram Swarup College of Engineering and Management. It includes: Sinusoidal, Alternating, Wave, Forms, Commercial, Supplies, Generation, Alternator, Faradays, Law
Typology: Slides
2011/2012
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Sinusoidal alternating wave forms
The term alternating means that the wave formalternates between two levels in a certain timesequence.The alternating wave forms available from thecommercial supplies are as
Sinusoidal AC voltages
Generation
Definitions:
The vertical scale is in volts or amperes and thehorizontal scale in units of time
Wave form: the path traced by the quantity.Instantaneous value: the magnitude of a wave format any instant of timePeak amplitude: the maximum amplitude of waveform measured from the mean value.
Peak-to-peak value: full voltage between maximum andminimum value.Periodic wave form: a wave form that repeat it self after acertain interval of time.Period (T): the time interval between the successiverepetition of periodic wave form.
the units of frequency is hertz (Hz)
Relation between frequency and time period
Defined polarities and direction
The units for horizontal measurements is“degree” and other is “radian”.The radian to degree conversion is as
In general the conversion is as
Sine wave plot
Circular motion
Angular velocity (
ω
): the velocity with which the radius
vector rotates about its centre.
The units of
ω
is in radian per sec
or