Measuring Electrical Power

Peter Docken • Jun 06, 2023

Power in WATTS:

W = Watts (Power) 1 HP=746 watts

P = Watts (Power). Power=voltage x current (P= Ex I), One watt=l volt x 1 ampere

I = Amps (Current, flow), Measured in series. Current will only flow from high pressure to low pressure.

E= Volts (Pressure), Measured in parallel. A battery is a box of Pressure. Batteries do not contain Amps. Ohms Law says: increased voltage (pressure) causes increased current (flow).

R = Ohms (Resistance), Ohms Law is not math-it's a concept. Resistance will drop voltage (pressure) because it takes energy (pressure) for current to move past it

  • Resistance makes current slowdown or stop.
  • All loads need some resistance.
  • Wires with corrosion have high resistance.
  • All conductors have some resistance.
  • 0LCl=Open (zero), 0Cl= continuity (everything).
  • Voltage and Resistance make current.


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