Discussion
Which topology uses a capacitive divider for feedback?
Answer: B
The Colpitts places two capacitors in series across the tank and takes the feedback from their junction. The Hartley taps the inductor, the Armstrong uses transformer coupling, and the Wien bridge is an RC audio topology entirely. Since capacitors are easier to make accurately than tapped inductors, the Colpitts became the dominant arrangement and its descendants account for most radio-frequency oscillators built today.
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