Chapter 15 Alternating Current
Chapter 15 Alternating Current
Chapter 15 Alternating Current
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Voltages and <strong>Current</strong>s as<br />
Functions of Time<br />
Equations used to compute voltages and<br />
currents at any instant of time<br />
Referred to as instantaneous voltage or<br />
current<br />
21<br />
Voltages and <strong>Current</strong>s with<br />
Phase Shifts<br />
If a sine wave does not pass through zero<br />
at t = 0, it has a phase shift<br />
For a waveform shifted left<br />
v = V m sin( t + )<br />
For a waveform shifted right<br />
v = V m sin( t - )<br />
22<br />
11
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