Which of the following is a resonant or tuned circuit?
An inductor and a capacitor in series or parallel✓Richtige Antwort
A linear voltage regulator
A resistor circuit used for reducing standing wave ratio
A circuit designed to provide high-fidelity audio
Erklärung
A tuned circuit is an inductor together with a capacitor, connected either in series or in parallel, whose reactances cancel at one particular frequency. A voltage regulator and a resistive network have no such frequency-selective behavior.