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Photoresistor
- A photoresistor (also known as a photocell, or 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.
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A photoresistor (also known as a photocell, or 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).
Jun 18, 2023 · Contents. A light-dependent resistor ( LDR) is a passive electronic component that changes its resistance according to the intensity of light that falls on its surface. LDRs are also known as photoresistors, photocells, or photoconductors. They are made of semiconductor materials that have high resistance in the dark and low resistance in the ...
Oct 26, 2023 · Light Dependent Resistors (LDRs), also known as photoresistors, are a crucial component in the world of electronic circuits. These components exhibit photoconductivity, which essentially means their resistance changes based on the intensity of light they are exposed to.
Photoresistors, also known as light dependent resistors (LDR), are light sensitive devices most often used to indicate the presence or absence of light, or to measure the light intensity. In the dark, their resistance is very high, sometimes up to 1 MΩ, but when the LDR sensor is exposed to light, the resistance drops dramatically, even down ...
A resistor is a passive two-terminal electrical component that implements electrical resistance as a circuit element. In electronic circuits, resistors are used to reduce current flow, adjust signal levels, to divide voltages, bias active elements, and terminate transmission lines, among other uses.
Aug 15, 2023 · LDR (Light Dependent Resistor) as the name states is a special type of resistor that works on the photoconductivity principle means that resistance changes according to the intensity of light. Its resistance decreases with an increase in the intensity of light.
