Q. An op amp has a finite gain of only 50, but is otherwise ideal. For the inverting-amplifier circuit of Figure, if R₂ = 20 k, what value of R₁ would be needed to give a gain of -15? If the op amp's gain could be increased by 20%, find the new gain.

Posted Date: 6/17/2013 3:59:50 AM | Location : United States

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