Question 101Electricity/Electronics - QMED70% to pass
Which of the following statements concerning AC circuits is correct?
AI Explanation
The correct answer is D) Inductive reactance varies directly with the source frequency.
This statement is correct because in an inductive circuit, the inductive reactance (XL) is directly proportional to the source frequency (f) and the inductance (L) of the circuit. The formula for inductive reactance is XL = 2πfL, which shows that as the frequency increases, the inductive reactance also increases.
The other options are incorrect because: A) The power factor of a resistive circuit is 1, not 0; B) In a capacitive circuit, the current leads the voltage, not lags; and C) In an inductive circuit, the true power is usually less than the apparent power due to the reactive component.
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