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Consider the following statements for piezoelectric materials: 1. All piezoelectric materials are ferroelectric materials also. 2. Piezoelectric materials have a high value of dielectric constant. Which of the above statements is/are correct?

Consider the following statements for piezoelectric materials: 1. All piezoelectric materials are ferroelectric materials also. 2. Piezoelectric materials have a high value of dielectric constant. Which of the above statements is/are correct? Correct Answer Neither 1 nor 2

Concept:

Piezoelectric material:

  • The piezoelectric material is the one that possesses the property to convert mechanical energy into electric energy and vice versa. 
  • A commonly known piezoelectric material is quartz. 
  • The mechanism involves the development of electric charge due to the movement of electrons upon application of stress.
  • Piezoelectric materials have a low value of dielectric constant.

Ferroelectric material:

  • Ferroelectric materials are materials that exhibit Ferroelectricity.
  • Ferro electricity is the ability of the material to have a spontaneous electric polarization. 
  • All the ferroelectric materials exhibit a piezoelectric effect due to a lack of symmetry.

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