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Electronic rheostat provides decades of load resistance

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Keywords: electronic rheostat  mechanical rheostat  electrical loads  load resistance 

Power resistors, rheostats (variable resistors), and other electrical loads are useful for testing power supplies and regulators.

Though functionally equivalent to a mechanical rheostat, electronic rheostats are based on active components. The advantages of these rheostats include many decades of load resistance in a single circuit, very fine resolution of resistance values, and better thermal management than the mechanical version.

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