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1)What is the LDR sensor and what is the effect of light on this device? 2)Name 4...

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Electrical Engineering

1)What is the LDR sensor and what is the effect of light on thisdevice?

2)Name 4 physical phenomena that light can have on some devices,so these devices can be used as light sensor.

3)What is the main difference in structure of PIN Photodiode andstandard PN photodiode (photovoltaic cell)? What is the advantageof PIN over PN?

Answer & Explanation Solved by verified expert
4.1 Ratings (565 Votes)
1 LDR means Light Dependent Resistor So LDR has a variable resistance which changes with the amount of light falling on it The value of the resistance decreases with increase in light intensity Typical values of LDR varies from few hundred ohms    See Answer
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