_________ serves as an example of a piezoelectric substance?
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Answer: B. Quartz
Explanation
Quartz possesses a crystalline structure that lacks a center of symmetry, enabling the piezoelectric effect. Applying mechanical pressure deforms the quartz crystal lattice and displaces internal electrical charges. This displacement creates a measurable voltage across opposing faces of the compressed quartz crystal. The piezoelectric effect is the ability of certain materials to generate an electric charge in response to stress. Quartz is a naturally occurring mineral composed of silicon and oxygen atoms arranged in a lattice. Piezoelectric materials are widely used for electromechanical transduction in sensors and actuators.
Quartz crystals are utilized in precision electronic oscillators to maintain stable clock frequencies in computers. Microphones and pressure sensors use piezoelectric quartz to convert mechanical vibrations into electrical signals. Ultrasonic cleaning equipment relies on piezoelectric transducers to generate high-frequency mechanical waves. Glass is an amorphous material lacking the crystalline symmetry required to exhibit piezoelectric behavior. Corundum is an aluminum oxide crystal that does not generate significant piezoelectric charges under stress. Neoprene is a synthetic rubber polymer used for insulation and gaskets rather than piezoelectric sensing.
- Subject
- Engineering
- Category
- Electrical Engineering
- Topic
- —
- Difficulty
- medium
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