The impedance of a capacitor in AC circuits is:

A R

B 1/(jωC), which decreases with increasing frequency

C jωL

D Zero at all frequencies

✓ Correct Answer: Option B

Z_C = 1/(jωC). Capacitor: blocks DC (ω=0 → ∞ impedance), passes high frequency. Inductor: opposite.

💡 Why is B) the correct answer?

The correct answer to the question "The impedance of a capacitor in AC circuits is:" is Option B: 1/(jωC), which decreases with increasing frequency.

The other options — A) R, C) jωL, D) Zero at all frequencies — are incorrect for this FE Exam Prep question. As explained above: Z_C = 1/(jωC). Capacitor: blocks DC (ω=0 → ∞ impedance), passes high frequency. Inductor: opposite.

📚 About This FE Exam Prep Practice Question

This 2-level FE Exam Prep question from the Electrical Circuits topic is part of BrainForge Quiz's free exam preparation library. Each question includes the correct answer and a detailed explanation to help you understand the underlying concept, not just memorize the answer.

How to use this page: Read the question above, consider all four options (A through D), then check the highlighted correct answer and explanation. For active timed practice, start a free FE Exam Prep practice test or use flashcards for spaced repetition review.

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The impedance of a capacitor in AC circuits is:

✓ Correct Answer: Option B

📚 About This FE Exam Prep Practice Question

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