Archive:Principles of Electricity: Difference between revisions
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Power Law | Power Law | ||
<math>P=V*I</math> | <math>P=V*I</math><br> | ||
<math>P=(I^2)*R</math> | <math>P=(I^2)*R</math><br> | ||
<math>P=(V^2)/R</math> | <math>P=(V^2)/R</math><br> | ||
*note 2 values must be given to find unknown | *note 2 values must be given to find unknown | ||
[[Category:Electrical engineering]] | [[Category:Electrical engineering]] | ||
Revision as of 05:14, 19 February 2008
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