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The electrical response of a crystal is known as _______

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The electrical response of a crystal is known as _______

(a) Dielectric strength

(b) Dielectric constant

(c) Piezoelectric effect

(d) Hysteresis

The question was asked in final exam.

The doubt is from Polarisation and Dielectrics in chapter Refractories & Dielectric Materials of Engineering Material & Metallurgy

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Correct answer is (c) Piezoelectric effect

Easiest explanation: The mechanical response of a ferroelectric crystal on the application of an electric field is known as the piezoelectric effect. The piezoelectric effect can be seen in ferroelectric crystals. BaTiO3 is a common ferroelectric crystal, which is used for its piezoelectric properties in microphones, strain gauges, and sonar devices.

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