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← ScienceWhich consequence results when repetitive charging of a piezoelectric actuator exceeds dielectric withstand limits?
A)Reduced energy conversion efficiency
B)Increased resonant frequency drift
C)Catastrophic dielectric breakdown occurs✓
D)Harmonic distortion within drive currents
💡 Explanation
Repetitive, high-voltage charging causes increased electric field stress. Therefore, dielectric breakdown occurs due to impact ionisation, because the induced electric field exceeds breakdown strength, rather than simply reducing actuation efficiency or modifying resonance.
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