LDR (Light Dependent Resistor) or photoresistor is a kind of resistor whose resistance changes according to the intensity of light falling on it.These are used in light dependent circuits.

Intensity of light falling on the LDR is inversely proportional to the resistance offered by the LDR.

Step 1: LDR in Action

With this video you can understand the working of ldr and how to use it.

Simple LDR Circuit

Step 1: LDR in Action

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Introduction: Simple LDR Circuit

Step 1: LDR in Action

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