Piezoelectric effect
Piezoelectric effect: generation of electricity from pressure One of the most useful and interesting phenomena in the world of physics and materials science is the piezoelectric effect, in which electricity is generated by applying mechanical stress to certain crystals and materials. Electrical charge from pressure: When quartz, topaz, or certain types of ceramics are pressed, bent, or shaken, the balance in their atomic structure is disrupted and positive and negative electrical charges are created on the surface of the crystal. Reverse effect: This process works both ways. If an electric current is passed through these crystals, they change their shape and produce very fine vibrations. Use in everyday life Gas lighter: By pressing the button on the lighter, a small hammer strikes a piezo crystal, which creates a small spark of thousands of volts and ignites the gas. Quartz watches: By supplying current from a battery to a quartz crystal, it vibrates exactly 32,768 times per seco...