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______________ is not a piezo-electric material.

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in Biomedical Instrumentation by (76.6k points)
______________ is not a piezo-electric material.

(a) quartz

(b) rochelle salt

(c) aluminium

(d) barium titanate

The question was posed to me during an interview for a job.

The question is from Implantable Telemetry Systems in division Biomedical Telemetry of Biomedical Instrumentation

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The correct option is (a) quartz

To explain I would say: Quartz is the most stable natural crystal with high mechanical and thermal stability and has volume resistivity higher than 10^4 ohm-cm and small internal electric loss. Barium titanate ceramic is a ferroelectric crystal and has small voltage output. Aluminium is not a piezo-electric material.

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