op amp question

  1. X

    Im stuck on my electric curcuit homework could u guys help me

    Im stuck on my electric curcuit homework could u guys help me
  2. B

    Hartley Oscillator using an Opamp

    I was trying to derive a model for Opamp Hartley oscillator. I used a R at mouth of opam to increase the output impedance. So i tried including it in calculation. As the opamp is modeled as output voltage of Avi so using a R in series with it with help me to reconfigure the circuit changing the...
  3. M

    OP amp question. Calculate the gain vi/vo.

    Hi I'm currently stuck on current question. Consider the following OP amp circuit in . Obtain the gain vo/vi of the amplifier. What I can see is I can find the voltage on positive and negative pin of top OP amp, which is 30/50*vi (because positive pin of top OP amp is in parallel with 30...
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