Archive:Principles of Electricity: Difference between revisions
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'''Basic formulas calculating resistance, | '''Basic formulas calculating resistance, current, voltage, and power-''' | ||
<br> | <br> | ||
where: | where: | ||
<br> | <br> | ||
*V= voltage | *V= voltage (Measured in Volts) | ||
*I= | *I= current (Measured in Amperes) | ||
*R= resistance | *R= resistance (Measured in Ohms) | ||
*P= | *P= power (Measured in Watts) | ||
Ohm's Law | Ohm's Law | ||
<math>V=I*R</math> | <math>V=I*R</math> | ||
Revision as of 05:15, 19 February 2008
Basic formulas calculating resistance, current, voltage, and power-
where:
- V= voltage (Measured in Volts)
- I= current (Measured in Amperes)
- R= resistance (Measured in Ohms)
- P= power (Measured in Watts)
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