Question: An amplifier has gain a 0 = 200 and its transfer function has three negative real poles with magnitudes 1 MHz, 3 MHz, and 4

An amplifier has gain a₀ = 200 and its transfer function has three negative real poles with magnitudes 1 MHz, 3 MHz, and 4 MHz. Calculate and sketch the root locus when feedback is applied as f varies from 0 to 1. Estimate the value of f causing instability.

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