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At the resonant frequency, what is the phase shift for the output in a Wien Bridge oscillator?

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At the resonant frequency, what is the phase shift for the output in a Wien Bridge oscillator?

(a) 0°

(b) 45°

(c) 90°

(d) 180°

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Best answer
Right choice is (a) 0°

The best explanation: The Wien Bridge oscillator uses a feedback circuit which consists of a series RC circuit which is connected with a parallel RC network, producing a phase delay or phase advance circuit depending on the frequency, which is however 0° at the resonant frequency.

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