What is piezoelectric effect? Name two piezoelectric material.

What is piezoelectric effect? Name two piezoelectric material.
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Answer :

piezoelectric effect: Piezoelectric effect can be stated as follows: “ when a pressure or force or vibration is applied to crystalline material like quartz crystal or crystalline substances, then an e.m.f. is generated across the material or vice versa”. 


Piezoelectric Materials: 1) Natural crystal: Quartz crystal ,Rochelle salt 2) Synthetic crystals : Barium Titanate, Lithium sulphate

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