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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°I had been asked this question during an interview for a job.I'm obligated to ask this question of Weinbridge Oscillator topic in portion Oscillators of Analog Circuits

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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