This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1884 Excerpt: ...against one of the stops by means of a spring. By means of the handle it can be turned till it is forced against the other stop. On the handle being released, the bobbin turns instantly through 90, under the action of the spring. The ends of the bobbin are connected to the poles of the galvanometer by means of two thin ...
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This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1884 Excerpt: ...against one of the stops by means of a spring. By means of the handle it can be turned till it is forced against the other stop. On the handle being released, the bobbin turns instantly through 90, under the action of the spring. The ends of the bobbin are connected to the poles of the galvanometer by means of two thin wires twisted together, so that accidental motions of the connecting wire through the magnetic field may not affect the galvanometer. The stand of the instrument is so graduated that the exact position of the centre of the bobbin in the magnetic field can be noted, and so a map of the latter can be constructed with the intensity at each point. See " (Euvres de Verdet," tome i. notes et memoires, p. 128; or my "Electricity," 2nd ed. vol. ii. p. 253. f The current is of varying intensity and may' be represented at each instant by dC, where C is the current in amperes. The total quantity Q of electricity generated in a time to where Q is measured in coulombs, and t is the time occupied by the bobbin in turning 60, is 'dt. + The shunt used must not be varied during a set of experiments. Lines are engraved on the base from which the horizontal distances in two directions (at right angles to each other) from the centre of the magnet can be measured by the rule shown lying on the base, and divisions in the vertical stem give the height above the face of the magnet. A gauge enables the bobbin to be set vertically over any point on the surface of the pole plate. With magnets such as are used in my alternating-current machines, the centre of the face of the pole plate is taken as "origin," distances measured along the circumference of the magnet-wheel are called x, those along the radius are called y, and those perpendicul...
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Add this copy of A Practical Treatise on Electric Lighting to cart. $25.40, new condition, Sold by Books2anywhere rated 5.0 out of 5 stars, ships from Fairford, GLOUCESTERSHIRE, UNITED KINGDOM, published 2022 by LEGARE STREET PR.
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PLEASE NOTE, WE DO NOT SHIP TO DENMARK. New Book. Shipped from UK in 4 to 14 days. Established seller since 2000. Please note we cannot offer an expedited shipping service from the UK.
Add this copy of A Practical Treatise on Electric Lighting to cart. $34.81, new condition, Sold by Books2anywhere rated 5.0 out of 5 stars, ships from Fairford, GLOUCESTERSHIRE, UNITED KINGDOM, published 2022 by LEGARE STREET PR.
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PLEASE NOTE, WE DO NOT SHIP TO DENMARK. New Book. Shipped from UK in 4 to 14 days. Established seller since 2000. Please note we cannot offer an expedited shipping service from the UK.
Add this copy of A Practical Treatise on Electric Lighting to cart. $38.38, new condition, Sold by Paperbackshop International rated 5.0 out of 5 stars, ships from Fairford, GLOS, UNITED KINGDOM, published 2022 by LEGARE STREET PR.
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PLEASE NOTE, WE DO NOT SHIP TO DENMARK. New Book. Shipped from UK in 4 to 14 days. Established seller since 2000. Please note we cannot offer an expedited shipping service from the UK.
Add this copy of A Practical Treatise On Electric Lighting to cart. $41.43, new condition, Sold by Booksplease rated 4.0 out of 5 stars, ships from Southport, MERSEYSIDE, UNITED KINGDOM, published 2022 by Legare Street Press.
Add this copy of A Practical Treatise On Electric Lighting to cart. $29.57, new condition, Sold by Ingram Customer Returns Center rated 5.0 out of 5 stars, ships from NV, USA, published 2022 by Legare Street Press.
Add this copy of A Practical Treatise On Electric Lighting to cart. $39.01, new condition, Sold by Ingram Customer Returns Center rated 5.0 out of 5 stars, ships from NV, USA, published 2022 by Legare Street Press.
