LDRs & Thermistors
Physics: Cambridge International GCSE Supplement, topic 4.7.5
LDRs & Thermistors
/circuit-thermistor-min,w_800.jpg)
Thermistors
- A thermistor is a component whose resistance changes with its temperature.
- Usually increasing temperature decreases the resistance.
/circuit-light-dependentresistor%20(concept)-min,w_800.jpg)
LDRs
- A light dependent resistor (LDR)s resistance changes with light intensity.
- Usually increasing light intensity decreases the resistance.
Test yourself on LDRs & Thermistors
If a thermistor is connected in series with a resistor and battery, what will happen in the circuit when the temperature increases?
What effect will increased light intensity have on an LDR?