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AC Power
Resistive circuit
Current is in phase with coltage
All real power
AC Power
Inductive circuit
current lags voltage by 90 degrees
no real power
AC Power
capacitive circuit
current leads voltage by 90 degrees
no real power
The majority of loads out in the business and home place are inductive loads.
AC
power is the power that is dissipated by the resistive element of the circuit. It is found by applying the Power Law to the current and voltage that is found in the resistive part of the circuit.
True Power
The unit of true power is...
Watts
The power in a circuit could be found by applying the power law to the voltage and current in a reactive element in the circuit.
Reactive power
cosine of angle between true power and apparent power is the