Practical wireless telegraphy; a complete text book for students of radio communication (1917)
Bucher, Elmer Eustice, 1885- · New York, Wireless Press, Inc · leaf 223
ntact. Dr. Rosa of the Bureau of Standards has given an expression for circular sectioned non-magnetic wire as follows: If the true inductance is designated as L, and the current sheetinductance as L-s, then, L = L-s — L-cwhere L-c is the correction value, and, L-c = 47r a n (&-f Ks)where Kz… … ooo 010 ai5 oao oas 0.30 ojs Fig. 232—Showing the Values of a Correction Factor for Determining the True Inductance of a Coil, PRACTICAL RADIO MEASUREMENTS. 213 dof bare wire to its pitch in a given winding and for any given value of — a value of Ka Dappears in Fig. 231. It should be noted that K2…
Telegraph, Wireless
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