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Which 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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