Question

what is the use of LDR​

Answer 1

Answer:

It is used to save power in electrical appliances .....

it's full form is light dependent register

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Answer 2

Answer:

LDR full form is Light dependent Resistors. These devices are used where there is a need to sense the presence and absence of light is necessary. These resistors are used as light sensors and the applications of LDR mainly include alarm clocks ,street lights ,light intensity meters ,burglar alarm circuits.

Explanation:

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