Question: * 1 1 . 8 9 Three identical inverting amplifier stages, each characterized by a low - frequency gain K and a single - pole

*11.89 Three identical inverting amplifier stages, each characterized by a low-frequency gain K and a single-pole response with Jab =100 kHz, are connected in a feedback loop with =1. What is the minimum value of
K at which the circuit oscillates? What would the frequency of oscillation be?

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