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 136
they issue from one end andenter into the other end of the coil, as shown in fig. 117. 116 HAWKINS ELECTRICITY. Ques. What are the properties of a solenoid? Ans. A solenoid has north and south poles, and in fact pos-sesses all the properties of an ordinary permanent magnet, withthe important… … FlG. 118.—Magnetic field of a solenoid. This is best observed by cutting a piece of cardboardand fitting it around the solenoid, as shown. If iron filings be sprinkled on the cardboardand a current passed through the solenoid, the character of the field is indicated. Withthe current in the…
Electrical engineering
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