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Description: Schematic symbol for a light-dependent resistor. Date: 3 July 2007: Source: Own work: Author: bdesham: Permission (Reusing this file)As a courtesy (but not a requirement), please e-mail me or leave a note on my talk page if you use this image outside of Wikipedia.
A photoresistor (also known as a light-dependent resistor, LDR, or photo-conductive cell) is a passive component that decreases in resistance as a result of increasing luminosity (light) on its sensitive surface, in other words, it exhibits photoconductivity.
When a photoconductive material is connected as part of a circuit, it functions as a resistor whose resistance depends on the light intensity. In this context, the material is called a photoresistor (also called light-dependent resistor or photoconductor ).
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An electronic symbol is a pictogram used to represent various electrical and electronic devices or functions, such as wires, batteries, resistors, and transistors, in a schematic diagram of an electrical or electronic circuit. These symbols are largely standardized internationally today, but may vary from country to country, or engineering ...
voltage regulators are often "U" for IC, pots and trimmers often "R" for resistor X: Socket connector for another item not P or J, paired with the letter symbol for that item (XV for vacuum tube socket, XF for fuse holder, XA for printed circuit assembly connector, XU for integrated circuit connector, XDS for light socket, etc.) X, XTAL, Y
Potentiometer – three-terminal variable resistor (variable voltage divider) [8] Trim pot – small potentiometer, usually for internal adjustments; Thermistor – thermally sensitive resistor whose prime function is to exhibit a large, predictable and precise change in electrical resistance when subjected to a corresponding change in body ...
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