BRAINCAKEThe Light Dependent Resistor
A light dependent resistor is made of semi-conductor material in which the number density of charge carriers increases with the intensity of light.
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Key terms in this lesson
- density
- The mass per unit volume of a substance.
- resistance
- The ratio of the potential difference across a component to the current through it.
- number density
- The number of charge carriers, such as free electrons, per unit volume of a material.
- intensity
- The radiant power passing through a surface per unit area.
More in Electricity
- Diodes
- Resistivity
- Temperature and Number Density
- The Thermistor
- Electrical Power
- Electricity in the Home
- Kirchoff's Second Law
- Series Circuits
All 30 lessons in Electricity · All OCR AS-level Physics topics