pyroelectricity
pyroelectricity The positive and negative electrical charges developed at opposite ends of the polar axis of a crystal in response to a change in temperature. It is observed in tourmaline.
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piezoelectric effect , piezoelectric effect Creation of positive electric charge on one side of a nonconducting crystal and negative charge on the other when the crystal is… Negative , neg·a·tive / ˈnegətiv/ • adj. 1. consisting in or characterized by the absence rather than the presence of distinguishing features. ∎ (of a statement… minus , mi·nus / ˈmīnəs/ • prep. 1. with the subtraction of: what's ninety-three minus seven? ∎ inf. lacking; deprived of: he was minus a finger on each hand… Electric Charge , Rub a balloon or styrofoam drinking cup against a wool sweater, and it will then stick to a wall (on a dry day) or pick up small bits of paper. Why?… Hall Effect , The Hall effect, in physics, is the potential difference that occurs on opposite sides of a conducting material when an electric current is present,… Thermometer , A thermometer is a device that registers the temperature of a substance relative to some agreed upon standard. Thermometers use changes in the physic…
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pyroelectricity