Which of the following materials is commonly used in piezoelectric transducers?
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A.
Silicon
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B.
Copper
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C.
Quartz
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D.
Aluminium
Correct Answer:
C. Quartz
Explanation:
Quartz is a natural single-crystal material frequently used in piezoelectric transducers due to its exceptional long-term stability and minimal loss of electrical charge over time. While modern synthetic ceramics like lead zirconate titanate (PZT) are now more common in high-sensitivity industrial and medical applications, quartz remains the standard for high-precision devices such as watches and clocks because of its reliable frequency of operation and ability to maintain accuracy for years. Other materials like silicon, copper, and aluminium do not possess the necessary piezoelectric properties to efficiently convert mechanical stress into electrical signals.
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