Archive:Principles of Electricity: Difference between revisions
wikademia>Erkan Yilmaz +Category:Electrical engineering +{{welcome and expand}} |
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| Line 5: | Line 5: | ||
where: | where: | ||
<br> | <br> | ||
* | *V= voltage | ||
*I= ampacity | *I= ampacity | ||
*R= resistance | *R= resistance | ||
*P= wattage | *P= wattage | ||
Ohm's Law | Ohm's Law | ||
<math> | <math>V=I*R</math> | ||
<br> | <br> | ||
Power Law | Power Law | ||
<math>P= | <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 | *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