Archive:Principles of Electricity: Difference between revisions
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'''Basic formulas calculating resistance, ampacity, voltage, and wattage-''' | '''Basic formulas calculating resistance, ampacity, voltage, and wattage-''' | ||
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<math>P=E*I</math> | <math>P=E*I</math> | ||
*note 2 values must be given to find unknown | *note 2 values must be given to find unknown | ||
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Revision as of 08:33, 9 February 2008
Basic formulas calculating resistance, ampacity, voltage, and wattage-
where:
- E= voltage
- I= ampacity
- R= resistance
- P= wattage
Ohm's Law
<math>E=I*R</math>
Power Law
<math>P=E*I</math>
- note 2 values must be given to find unknown