St. John, Thomas M. (Thomas Matthew), b. 1865 · New York, T. M. St. John · leaf 127
o not offer verj^ much resistance. It will be seen from the above that in all eledtrical workthe sizes of the wires used have to be such that they donot overheat. The coils of dj-namos, motors, transform-ers, ampere-meters, etc., etc., become somewhat heatedby the currents passing through them,… … HEAT PRODUCED BY ELECTRIC CURRENT. 125
Electricity
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