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← ScienceWhich outcome occurs when a non-ideal amplifier circuit's transfer function contains right-half-plane zeros?
A)Gain is unconditionally unstable.
B)Step response exhibits undershoot.✓
C)Phase margin becomes predictably constant.
D)Harmonic distortion is automatically minimised.
💡 Explanation
A right-half-plane zero causes the output to initially move in the opposite direction because the inverse Laplace transform contains a negative exponential decay. Therefore, the step response exhibits undershoot, rather than alternatives relating to gain stability or harmonic distortion under ordinary negative feedback.
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