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LDR's and Thermistors

These are semi-conductors that change their resistance.

Anchor 1

1. The Light Dependent Resistor

LDRs: what are they made from and how do they work?

Anchor 2

2. The NTC Thermistor

This semiconductor changes its resistance with temperature (negative temperature coefficient) which makes it an ideal component in circuits that monitor the temperature of their surroundings.

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