If the Wein Bridge Oscillator based on op-amp is tuned at 1KHz, what is the phase shift provided by the feedback network?a.90b.0c.180d.60

The phase shift provided by the feedback network in a Wein Bridge Oscillator based on op-amp tuned at 1KHz is 0. So, the correct answer is b. 0.

Here's why:

The Wein Bridge Oscillator is a type of oscillator which is based on a frequency selective bridge circuit. The bridge circuit is balanced when the phase shift around the loop is 0 or 360 degrees.

In a Wein Bridge Oscillator, the feedback network is designed in such a way that it provides a phase shift of 0 degrees at the desired frequency of oscillation (in this case, 1KHz). This is necessary for the oscillator to start and sustain oscillations.

Therefore, regardless of the frequency at which the Wein Bridge Oscillator is tuned, the phase shift provided by the feedback network will always be 0 degrees.