Cyclopedia of applied electricity : a general reference work on direct-current generators and motors, storage batteries, electrochemistry, welding, electric wiring, meters, electric lighting, electric railways, power stations, switchboards, power transmission, alternating-current machinery, telegraphy, etc. (1916)
American Technical Society · Chicago : American Technical Society · leaf 88
C, which is composed of abundle of soft iron wires; a primary coil p wrapped around this core,and consisting of, say, 200 turns of coarse copper wire {e. g., No. 16),which is connected into the circuit of a battery through the contactpoint at the end of the screw d; a secondary coil s surrounding…
Electrical engineering
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