How Light Sensors Work: Explained in Detail

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    Light Sensors Work
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Phillips2207
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Can anyone tell me how does a light sensor work?
 
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What type?

There are a few different mechanisms depending on how sensitive you need, how fast a response and how much you want to pay.
Generally the light either generates electricity or changes the electrical characteristics of an element in such a way that you can measure the change with a circuit.
 
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