Physics
Grade-9
Easy
Question
If you squish a crystal, it vibrates and produces tiny electrical charges. This is called__________.
- Piezoelectric effect.
- Magnetomotive effect.
- Thermoelectric effect.
- Inappropriate information.
Hint:
When mechanical tension is exerted by compressing a crystal, there is an electrical potential present across its sides. This refers to Piezoelectricity.
The correct answer is: Piezoelectric effect.
If you squish a crystal, it vibrates and produces tiny electrical charges. This is called piezoelectric effect.
- Certain solid materials produce an electrical charge when it is applied to mechanical stress.
- The ability of these materials is called the piezoelectric effect/ piezoelectricity.
- The electric charges inside a crystal come out of balance.
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