why do we prefer a potentiometer of longer wire?
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we prefer it because of two reasons:
1) longer wire has more area to use up heat.
2) longer wire has more area for picking off a voltage, thus a much finer control of the output voltage is possible.
1) longer wire has more area to use up heat.
2) longer wire has more area for picking off a voltage, thus a much finer control of the output voltage is possible.
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