LDR

Which of the following is the symbol for LDR?

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What does LDR stand for?

• Light dependent resistor

• Light emitting diode

• Light emitter resistor

• Light diode resistor

Which of the following is an application of LDR?

• Used in light sensitive circuit

• Used in heat sensitive circuit

• Used in rectifier circuit

• Used in amplifier circuit

What happens to the resistance of LDR when the light intensity increases?

• increases

• decreases

• does not change

• first increases then decreases

What happens to the ammeter reading when the light intensity increases?

• increases

• decreases

• does not change

• first increases then decreases

What happens to the voltmeter reading when the light intensity increases?

• increases

• decreases

• does not change

• first increases then decreases