The Mechanical Engineering Handbook
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Power

Power Equation


$$ P = IV $$
where:

P   =   Power   (W)

I   =   Current   (A)

V   =   Voltage   (V)


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Equation Assumptions


  • The current and voltage are constant (in steady state).
  • The circuit behaves according to Ohm's Law.
  • The power is instantaneous.