Part 2E
Electrical Data
FORMULA FOR OHM’S LAW FOR AC CIRCUITS:
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where: |
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FORMULA FOR POWER IN AC CIRCUITS:
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W = VI(pf) |
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where: |
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The power factor is the ratio of actual power in a circuit measured in watts to the apparent power in volt-amperes. In a circuit with only resistive loads, such as incandescent lights or electric heating elements, impedance equals resistance, and the power factor is 1.0. Therefore, W = VI.
Example ...
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