LDRs Flashcards

All 4 cards in this deck

What does LDR stand for?

Light-dependent resistor.

How does the resistance of an LDR change as light intensity increases?

The resistance decreases.

Give one application of an LDR in a circuit.

Switching lights on automatically when it gets dark, e.g. street lights or a night-light.

True or false? In darkness an LDR has a low resistance.

False. In darkness the light intensity is low, so the LDR's resistance is high.