A fixed resistance or resistor opposes the flow of electric currents.
Its value, which we measure in ohms, is indicated by a code of colours and numbers.
The first two stripes are replaced by two numbers, according to their colour. The third stripe indicates the number of zeroes that we must add to the previous figure. The fourth stripe indicates the tolerance or the maximum deviation from the theoretical value.
Variable resistance or potentiometer
The value of a variable resistance or potentiometer can be adjusted between zero and the maximum value specified by the manufacturer.
RESISTANCE
POTENTIOMETER.
RESISTANCE
POTENTIOMETER.
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