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Physics electricity

Why is it that a potential divider control is better than a variable resistor control?
Original post by Dhruvi_majithia
Why is it that a potential divider control is better than a variable resistor control?

Hi. You need to give more context to this question as both examples can be used where each provides an optimal solution for a given application.

In general, potential dividers provide a constant load resistance and hence constant current from a fixed supply voltage which provides better thermal stability especially where heat generation is a problem.

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