This video explains the Alternating Current basics.

Video series created by EEVblog

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Alternating Current Basics - Part 1

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Topics discussed in Part 1:

• What is Alternating Current
• How AC is created using a generator
• Angular Frequency
• The sinusoidal waveform, benefits and downsides
• Average, peak, peak to peak, and RMS waveforms, calculation and conversions
• Non-sinusoidal waveforms
• Crest factor and its impact on multimeter RMS measurement

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Alternating Current Basics - Part 2

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Topics discussed in Part 2:

• AC Basics Theory
• How an AC waveform is produced
• Degrees, Radians and Gradians
• The ugly equation for AC voltage
• Theta vs Phi
• AC Ohms Laws, vectors, and impedance
• Phasors
• Two AC waveforms and phasor analysis
• Out of phase signals
• Phase shift
• Two sine waves always make another sine wave
• Angular frequency
• Phasor diagram
• How to add two phasors graphically
• CIVIL: Capacitors and Inductors with current Leading and Lagging
• Leading into Complex Numbers

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Alternating Current Basics - Part 3

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Topics discussed in Part 3:

• Complex Numbers
• Phasor graphical addition
• Why do calculators have the R-P and P-R buttons?
• Phasor diagram
• The AC voltage equation
• The complex plane and j vs i imaginary axis
• The Rectangular and Polar forms
• The j operator
• Polar and Rectangular format conversion
• Plotting points on the complex plane

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