Is there any terminal identification mark for rheostat as positive, negative?

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asked Apr 5, 2017 68.2k views

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Aleksandr Yatsenko · Answer 1 · 2017-04-12T10:25:05+0000

rheostats are pure resistances with a provision to vary the resistance connected in the circuit with a moving contact. Resistance do not have polarities

Is there any terminal identification mark for rheostat as positive, negative?

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