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← ScienceWhich outcome occurs when a piezoelectric sensor, acting as a variable capacitor, vibrates at its mechanical resonance frequency?
A)Increased energy harvesting efficiency✓
B)Reduced dielectric breakdown strength
C)Decreased capacitive reactance
D)Elevated electromagnetic interference emission
💡 Explanation
Maximum mechanical energy transfer occurs at resonance; therefore, increased vibration amplitude enhances charge displacement within the piezoelectric material via the Direct Piezoelectric Effect, leading to increased energy harvesting efficiency, rather than signal degradation or interference.
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