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1 vote
Which one is not uses of LDR

a) burglar alarms
b) lift doors
c) power indicators
d) tv screens​

1 Answer

6 votes

Answer:

The correct answer is (d) tv screens. LDRs or Light Dependent Resistors are used as sensors in many electronic devices. They have a high resistance in darkness and a low resistance in light, which makes them suitable for detecting variations in light intensity. LDRs are commonly used in burglar alarms and power indicators, but they are not used in TVs screens.

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