DC Counter Electromotive Voltage

A DC voltage connected to a skin electrode pair generates a DC current in the electrode wires. The resistance R = V/I, but V comprises both the tissue voltage drop and the 

Faradic current is the pulse current from an induction coil used for muscle stimulation. 

Fundamentally impedance is an AC concept. When DC special parameters are used, two examples are the Faraday law of electrolysis and the concept of counter emv. If the electrode circuit model comprises a chargeable battery or a capacitor, the DC current will charge such components, and little by little the current will decrease. This corresponds to a counter emv. It is a polarization voltage, not a polarization resistance. 

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