In the piezoelectric effect, how does pressure affect the electrical output?

The piezoelectric effect refers to the generation of an electric charge in certain materials (like quartz) when they are subjected to mechanical stress. When pressure is applied to a piezoelectric material, it leads to a displacement of charges within the material, resulting in an electrical output.

As the pressure increases, the deformation of the material intensifies, which in turn increases the charge separation and the resultant electrical output. This correlation between pressure and electrical output is essential for applications like sensors, actuators, and energy harvesting devices that utilize piezoelectric materials. Thus, the correct answer emphasizes the direct relationship between increased pressure and enhanced electrical output in piezoelectric systems.