Please provide a brief discussion of development of Operational Amplifier since the paper published in 1947 about amplifiers in analog computers of the day. 2. What are the assumptions made for analyzing the ideal operation amplifier?  3. What are the differential gain and common-mode gain of a differential amplifier?

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A: The correct option along with the explanation is provided in the following section.

Q: The differential gain is .........

A: The solution is provided in the following section.

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