Which type of material expands and contract in response to an applied electric field?
A. Advanced material
B. Smart material
C. Biomaterial
D. Nanomaterial
Answer:B
Which type of material expands and contract in response to an applied electric field?
A. Advanced material B. Smart material C. Biomaterial D. Nanomaterial
Explanation: Smart materials(Piezoelectric) expand and contract in response to an applied electric field(or voltage).