Abstract
THE inverse electromotive force of the voltaic arc has recently been investigated by Prof. C. R. Cross, of the Massachusetts Institute of Technology, and by Mr. W. E. Shepard. It appears that with currents varying from 3 to 10 amperes the inverse electromotive force is about 39 volts when the arc is silent, and about 15 volts when it is hissing; but both these values show a diminution as the currents employed are increased. The transition from one state to the other is abrupt. Addition of volatile metallic salts to the arc always decreases the inverse electromotive force. In rarefied air the inverse electromotive force is unaltered, but the true re-istance of the arc is diminished.
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Physical Notes . Nature 35, 331 (1887). https://doi.org/10.1038/035331a0
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DOI: https://doi.org/10.1038/035331a0