Items related to The Discovery of Induced Electric Currents (Volume...
Synopsis
This historic book may have numerous typos, missing text or index. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. 1900. Not illustrated. Excerpt: ... NINTH SERIES § 15. On The Influence By The Induction Of An Electric Current On Itself: -- And On The Inductive Action Of Electric Currents Generally Received December 18, 1834. -- Read January 29, 1835 1048. The following investigations relate to a very remarkable inductive action of electric currents, or of the different parts of the same current (74), and indicate an immediate connexion between such inductive action and the direct transmission of electricity through conducting bodies, or even that exhibited in the form of a spark. 1049. The inquiry arose out of a fact communicated to me by Mr. Jenkin, which is as follows. If an ordinary wire of short length be used as the medium of communication between the two plates of an electromotor consisting of a single pair of metals, no management will enable the experimenter to obtain an electric shock from this wire; but if the wire which surrounds an electro-magnet be used, a shock is felt each time the contact with the electromotor is broken, provided the ends of the wire be grasped one in each hand. 1050. Another effect is observed at the same time, which has long been known to philosophers, namely that a bright electric spark occurs at the place of disjunction. 1051. A brief account of these results, with some of a corresponding character which I had observed in using long wires, was published in the Philosophical Magazine* for 1834; and I added to them some observations on their nature. Further investigations led me to perceive the inaccuracy of my first-notions and ended in identifying these effects with the phenomena of induction which I had been fortunate enough to develop in the First Series of the Experimental Researches (1-59).* Notwith * Vol. V., pp. 349, 444. standing this identity, the extension an...
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