A three-stage 741 op-amp has a low-frequency open-loop gain of 200,000 and a dominant pole frequency of

Question:

A three-stage 741 op-amp has a low-frequency open-loop gain of 200,000 and a dominant pole frequency of $10 \mathrm{~Hz}$. The second and third poles are at the same frequency. If the phase margin is 70 degrees, determine the frequency of the second and third poles.

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