Question 4 20 pts The ideal operational amplifier has infinite gain. How is it t

Question

Question 4 20 pts The ideal operational amplifier has infinite gain. How is it that one can design an amplifier with arbitrary finite gain using an operational amplifier with infinite gain? O By using a circuit with positive feedback, arbitrary finite gain can be achieved. In reality operational amplifiers do not have infinite gain, so this is not an issue. This is impossible. O By using a circuit with negative feedback, arbitrary finite gain can be achieved Question 5 10 pts Using the ideal model for the operational amplifier, what is current (in A) flowing into the input terminals of the operational amplifier? Question 6 10 pts At which terminal of the operational amplifier should nodal analysis never be performed? The output terminal O The non-inverting input terminal. O The inverting input terminal. None of the terminals, mesh analysis is always used with operational amplifiers

Explanation / Answer

Q4. Option d. Using negative feedback gives finite gain with stability.

Q5. zero as the voltage difference between two terminals is 0.

Q6. Option a. This is beacuse opamp outputs some current.

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