Which one of the following materials is not used as a piezoelectric transducer?
A. Rochelle salt.
B. Lithium sulphate.
C. Barium titanate
D. Tungsten oxide.
Answer:D
Which one of the following materials is not used as a piezoelectric transducer?
A. Rochelle salt. B. Lithium sulphate. C. Barium titanate D. Tungsten oxide.