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ldrs are s ometimes used in automatic lights that turn on when it gets dark outside. when it gets dark outside, the resistance of the

Question

LDRs are s ometimes used in automatic lights that turn on when it gets dark outside. When it gets dark outside, the resistance of the LDR will be __ What word completes the sentence? low zero high

Answer

4.3 (180 Votes)
Verificación de expertos
Roger Elite · Tutor for 8 years

Answer

high

Explanation

An LDR is a component that has a (variable) resistance that changes with the light intensity that falls upon it. Light Dependent Resistors (LDR) or photoresistors are resistive devices whose resistance decreases with increasing incident light intensity; they are also called as photoconductors, photocells or photoconductive cells. Therefore, when it gets dark outside, light intensity decreases, and this leads to an increase in the resistance of an LDR.