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Which risk dramatically increases when piezoelectric crystal actuators approach saturation?

A)Hysteresis errors become more prominent
B)Resonance frequency shifts significantly
C)Charge carriers bypass forbidden gaps
D)Depletion region expands unexpectedly

💡 Explanation

Hysteresis error is increased when saturation happens because domain switching becomes irreversible, rather than aligned. This non linearity occurs near the limit, therefore output deviation increases rather than resonance shift.

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