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Archive:Principles of Electricity

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Revision as of 05:14, 19 February 2008 by 64.238.173.215 (talk)

Basic formulas calculating resistance, ampacity, voltage, and wattage-
where:

  • V= voltage
  • I= ampacity
  • R= resistance
  • P= wattage

Ohm's Law <math>V=I*R</math>
Power Law <math>P=V*I</math> <math>P=(I^2)*R</math> <math>P=(V^2)/R</math>

  • note 2 values must be given to find unknown