What is piezoresistivity? All Questions › Category: Automotive Electronics › What is piezoresistivity? 0 Vote Up Vote Down chetan shidling asked 4 years ago I need short information. 1 Answers 0 Vote Up Vote Down chetan shidling answered 4 years ago The piezoresistivity occurs in certain semiconductor by which the actual resistivity i.e., a property of material changes in proportion to the strain i.e., fractional change in length.