The potential drop in the arc, in a mercury arc rectifier, varies_____________?

Rectifiers and Converters 17/10/2021

A. 0.05 V to 0.2 V per cm length of the arc
B. 0.5 V to 1.5 V per cm length of the arc
C. 2 V to 3.5 V per cm length of the arc
D. none of the above

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