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← ScienceWhich outcome occurs when a piezoelectric crystal accumulates excess charge at a specific resonant frequency?
A)Dielectric breakdown field effect
B)Maximum mechanical energy transfer✓
C)Increased thermal vibrational damping
D)Reduced electrical potential gradient
💡 Explanation
Maximum mechanical energy transfer occurs due to impedance matching during resonance, because the crystal’s capacitance and intrinsic inductance form a series resonant circuit which vibrates maximally. Therefore, energy is converted to mechanical vibration, rather than building up stored charge or electrical potential.
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