Easy electrical experiments and how to make them; (1918)
Dickinson, Leonard Perley, 1874- [from old catalog] · Chicago, F. J. Drake & co · leaf 30
The present chapter deals withthe construction of such a coil which may be used for medicalpurposes, or for general experiments. An induction coil consists of four esential parts. These are,(i) a core of soft iron; (2) a primary coil of a few turns, woundclose to the core; (3) a secondary coil of… … will show the relation of these four parts. The core C ismade up of a bundle of soft iron wires, very straight, and ac-curately cut to a length of 4^4 inches. The wires should bebound together very tightly, forming a core, when completed,whose diameter is J4 inch, measured just outside the iron.…
Electric apparatus and appliances · Electricity
Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.
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