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← ScienceWhich mechanism explains the increased electrical energy discharge rate from a piezoelectric crystal under resonant mechanical vibrations?
A)Dominant ferroelectric domain switching
B)Increased charge carrier mobility
C)Enhanced stress-induced polarization✓
D)Reduced internal dielectric resistance
💡 Explanation
When a piezoelectric crystal resonates mechanically, enhanced stress-induced polarization occurs because applied periodic stress aligns more dipoles creating a larger voltage, increasing the energy available. Therefore enhanced stress-induced polarization correctly explains this, rather than ferroelectric switching which concerns materials possessing spontaneous polarisation.
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