What is Light Sensitive Resistor?
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A photoresistor (or light-dependent resistor, LDR, or photo-conductive cell) is a light-controlled variableresistor. The resistance of a photoresistor decreases with increasing incident light intensity; in other words, it exhibits photoconductivity
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An LDR is a component that has a (variable) resistance that changes with the light intensity that falls upon it. This allows them to be used in light sensing circuits.
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