The one that is extensively used as a piezoelectric material is
A
Quartz
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B
Amorphous silica
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C
Tridymite
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D
Mica
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Solution
The correct option is A Quartz Piezoelectric materials are those which produces electric current when they are placed under mechanical stress. Quartz is used as a piezoelectric material as it produces electricity when any mechanical stress is applied on it.