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KCC's Quiz AQQ259 about a tunable gain amplifier

New challenge is here! It's AQQ259 related to a tunable or adjustable amplifier:

The above circuit is a tunable or adjustable gain amplifier. The opamp used is

considered as ideal (i.e. infinite open loop gain, infinite input resistance and

zero output impedance).

Questions:

1. For given R1, R2 and P, at which wiper position α, Vout = 0 volt?

2. Versus Vin, what is the dynamic range of Vout?

Good luck! And try to be among the first ones!

P.S. Don't hesitate to spread those weekly quizzes to colleagues or friends (we need more participants)!

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[edited by: emassa at 2:12 PM (GMT -4) on 26 Apr 2024]
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  • Thanks for your reply  ! Wonder how you came to 50% for question 1 and -Ecc to +ecc for question2. 50% can be correct if you fix R1 to be equal to R2, but that's not the necessarily the case here. Same similar remark for question 2.

    May be you can retry?