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What will be the absolute value of phase shift, if the frequency keeps increasing?

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+1 vote
in Linear Integrated Circuits by (37.1k points)
What will be the absolute value of phase shift, if the frequency keeps increasing?

(a) Increase towards 45^o

(b) Decrease towards 45^o

(c) Increase towards 90^o

(d) Decrease towards 90^o

This question was addressed to me during an interview for a job.

My query is from Open-Loop Voltage Gain as a Function of Frequency topic in portion Practical Limitations of Op Amp Circuits of Linear Integrated Circuits

1 Answer

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by (39.8k points)
Right answer is (c) Increase towards 90^o

Unravel the mysteries with: For any frequency above break frequency, the absolute value of phase shift increases towards 90^o with increase in frequency.

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