constant-current dc potentiometer

constant-current dc potentiometer

[¦kän·stənt ′kər·ənt ¦dē¦sē pə‚ten·chē′am·əd·ər]
(electricity)
A potentiometer in which the unknown electromotive force is balanced by a constant current times the resistance of a calibrated resistor or slide-wire. Also known as Poggendorff's first method.
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