Henry and Hora's modern electricity; a practical working encyclopedia (1915)
Henry, James. [from old catalog], Hora, Karel Jan, 1881- [from old catalog] joint author · Chicago, Laird & Lee, inc. · leaf 89
urns or ampere turns,and the set of coils is called a solenoid. The law statedat the end of § 70 applies also in the case of a solenoid:within the coils the lines run parallel and in the generaldirection of the current from one end of the coil to theother; between the single turns, and outside, the… … Fig 24. end, thus completing the magneticThe word solenoid (from theshaped. RULE 22.— The number of lines of force {called induction,per square centimeter) set up in an empty helix, equals theproduct of the number of turns (per centimeter in length of thecoil) times the number of amperes multiplied…
Electrical engineering
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