In a parallel LC circuit, if the signal frequency is decreased below the resonant frequency, then________________?
Correct answer: A. XL decreases and XC increases
- A. XL decreases and XC increases
- B. XL increases and XC decreases
- C. Line current becomes minimum
- D. None of the above
Explanation
When frequency falls, inductive reactance XL = 2πfL decreases, while capacitive reactance XC = 1/(2πfC) increases. Thus option a describes the change below resonance.
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