E6D01 — Amateur Extra Class

E6D01 : What is piezoelectricity?
A The ability of materials to generate electromagnetic waves of a certain frequency when voltage is applied
B A characteristic of materials that have an index of refraction which depends on the polarization of the electromagnetic wave passing through it
C A characteristic of materials that generate a voltage when stressed and that flex when a voltage is applied
D The ability of materials to generate voltage when an electromagnetic wave of a certain frequency is applied
Correct Answer: A characteristic of materials that generate a voltage when stressed and that flex when a voltage is applied