Practical wireless telegraphy; a complete text book for students of radio communication (1917)
Bucher, Elmer Eustice, 1885- · New York, Wireless Press, Inc · leaf 32
reater inproportion to the permeability* of theiron. The coefficient of self-induction orinductance is also defined as the prop-erty of a conductor by which energymay be stored up in magnetic form.The unit of inductance is thehenry and represents the cutting of 100,000,000 lines of force when one… … Fig. 18—Variation of Magnetic Field by OpposingCoils.
Telegraph, Wireless
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