It opposes the flow of electric currents. Its value is indicated by this code of colours and numbers:
-Variable resistance or potentiometer
Its value can be adjusted between zero and the maximum value specified by the manufacturer.
-Resistance that depends on a physical factor
- Resistance that depends on temperatura is called termistor. There are two types: negative and positive.
- LDR: resistance that varies according to the amount of light received.
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