Electricity for public schools and colleges (1891)
Larden, W. (Walter), b. 1855 or 6 · London : Longmans · leaf 397
n time to become magnetised and demagnetised. This is not such an important obstacle ; but even this is nearly entirely obviated by means of the condenser, as will be explained in § 8. Again, so great is the E.M.F. induced in the secondary that there is danger of a spark penetrating the insulating… … Fig. i. the terminals of the primary connected with the battery ; theprimary coil is not shown, but its core A, composed of a bundleof soft iron wires insulated from each other so as to obviate eddycurrents, is seen slightly projecting from the coil; C is an ar-rangement for turning the current…
Electricity
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