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 266
ation is that a piece of soft ironplaced in a magnetic field and free to move, will move into suchposition as to conduct the maximum number of lines of force. The current to be measured is passed around the coil, produc-ing a magnetic field through the center of the coil. The mag-netic field inside… … Fig. 2.501.—Solenoid and plunger illustrating the operation of moving iron instruments.When a current flows through the coil, a field is set up as indicated by the dotted linesof force. The current flowing in the direction indicated by the arrow induces a northpole at N, which in turn induces a…
Electrical engineering
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