A photoresistor is a light-controlled variable resistor the resistance of a photoresistor lead sulfide (pbs) and indium antimonide (insb) ldrs (light- dependent resistors) are used for the mid-infrared spectral region ge:cu photoconductors. Light-dependent resistances (ldr) are cheap light sensors a less known lightdetector is the electret microphone, whose electret membrane.
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. The light dependent resistor, ldr, is known by many names including the photoresistor, photo resistor, photoconductor, photoconductive cell, or simply the .
A light dependent resistor (ldr) or a photo resistor is a device whose resistivity is a function of the incident electromagnetic radiation hence.
Investigation into the physics of a light dependent resistor introduction and explanation of how an ldr functions in this essay, my aim is to examine the.