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), 1833-1928 · New York : T. Audel & Co. · leaf 162
circuit are 5X5 =25. Accordingly, for the second-ary circuit the current strength is: 25 watts ~r 50 volts = yi ampere (approximately) From this, it is seen that where the voltage is raised in the secondarycircuit, the current flow is small as compared to that in the primarycircuit; therefore,… … Fig. 138.—Diagram of battery and coil connections for jump spark ignition as applied to amotor cycle. Coils are usually plainly labeled with the abbreviations: Bat., Pri.,Sec, indicating that the wires are to be connected to the battery, the primary circuitor contact maker, and the spark plug. The…
Electrical engineering
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