Question
Download Solution PDFWhich of the following are piezoelectric substances?
1. Barium Titanate
2. Lead Titanate
3. Lead Zirconate
4. Cadmium SulphateAnswer (Detailed Solution Below)
Detailed Solution
Download Solution PDFPiezoelectricity:
Piezoelectricity is the electric charge that accumulates in certain solid materials (such as crystals, certain ceramics, and biological matter such as bone, DNA and various proteins) in response to applied mechanical stress.
The word piezoelectricity means electricity resulting from pressure and latent heat.
Piezoelectric ceramics:
Barium titanate (BaTiO3) - The first piezoelectric ceramic discovered.
Lead titanate (PbTiO3)
Lead zirconate titanate (PZT) - Currently the most commonly used piezoelectric ceramic.
Potassium niobate (KNbO3)
Lithium niobate (LiNbO3)
Lithium tantalate (LiTaO3)
Sodium tungstate (Na2WO4)Last updated on Jul 2, 2025
-> ESE Mains 2025 exam date has been released. As per the schedule, UPSC IES Mains exam 2025 will be conducted on August 10.
-> UPSC ESE result 2025 has been released. Candidates can download the ESE prelims result PDF from here.
-> UPSC ESE admit card 2025 for the prelims exam has been released.
-> The UPSC IES Prelims 2025 will be held on 8th June 2025.
-> The selection process includes a Prelims and a Mains Examination, followed by a Personality Test/Interview.
-> Candidates should attempt the UPSC IES mock tests to increase their efficiency. The UPSC IES previous year papers can be downloaded here.