Hawkins electrical guide. Questions, answers & illustrations; a progressive course of study for engineers, electricians, students and those desiring to acquire a working knowledge of electricity and its applications; a practical treatise (1914)
Hawkins, N. (Nehemiah), 1833- · New York, T. Audel · leaf 238
y excited alternator as il-lustrated on page 1,192. Electrolytic Rectifiers.—If two metals be placed in an elec-trolyte and then subjected to a definite difference of pressure,they will (under certain conditions) offer greater resistance to tlie 1,496 HAWKINS ELECTRICITY passage of a current in one… … Figs. 2,076 to 2,078.—Diagrams showing alternating currents, and partial and complete recti-fication. Ques. What is generally used for the other electrode? Ans. Lead or polished steel. Metals of low atomic weight exhibit the valve effect at high differencesof pressure, and heavier metals at low…
Electrical engineering
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