If the power factor = 1, the power dissipation in the circuit will be:
Correct answer: A. The circuit is dissipating maximum power
- A. The circuit is dissipating maximum power
- B. The circuit may or may not be dissipating maximum power
- C. The circuit is not dissipating any power
- D. None of the above
Explanation
A power factor of 1 means the circuit is purely resistive, and the voltage and current are in phase. This ensures that all the apparent power delivered to the circuit is converted into real power (heat or work), representing the maximum possible power dissipation for a given RMS voltage and current.
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About Alternating Current
Alternating current varies periodically, so phase relationships become essential when current passes through a resistor, capacitor or inductor. The chapter distinguishes resistance from capacitive and inductive reactance, explains phase lead and lag, and connects changing electric and magnetic fields with the production and properties of electromagnetic waves.
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