this is because the resistors cause the energy that is flowing through to go at a slower rate and this helps preserve a battery or power source. also it can be used as a trip for a alarm.
As more resistors are added in series to a constant voltage source, the power supplied by the source will decrease.
As series resistors are added, the resistance is added directly so the total resistance will be equal to
[tex]R_{T} =R_{1} +R_{2} +R_{3} ................R_{∞}[/tex]
Since the power is determined as
P=V2/R
We have there that
Pα1/R
The power is inversely proportional to the increase in resistance, so it will tend to decrease as more resistors are added in series.
To learn more about resistors refer:https://brainly.com/question/14288732
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