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File:Practicalelec reflecting galvanometer.jpg

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English: A simple, convenient, and cheap reflecting galvanometer, to be used for the simple comparison of quantities of electricity, has been arranged by Mr. Mather. It consists of two coils, cc', supported in position by fitting into channels formed on the base, and a vertical narrow strip of mica, s s, suspended by a fibre of unspun silk, f, carrying the mirror M, and three sets of magnets, m1, m2, and m3,the first and third of which form an astatic combination with the middle set, m2, which is inside the coils : m1 and m3, although not surrounded with wire, are nevertheless deflected by the current passing round the adjacent convolutions of the coil in the same direction as m2, which is inside the coil, so that the magnetic forces acting on all three sets of magnets conjoin in their effects.
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Source Picture and figure description taken from: William Edward Ayrton: Practical Electricity, London, Cassell, 1891 Online, Page 299, Chapter VII, Figure 110
Author William Edward Ayrton

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current20:10, 11 May 2011Thumbnail for version as of 20:10, 11 May 2011419 × 507 (37 KB)Wdwd (talk | contribs)== Summary == {{Information |Description={{en|A simple, convenient, and cheap reflecting galvanometer, to be used for the simple comparison of quantities of electricity, has been arranged by Mr. Mather. It consists of two coils, cc', supported in position

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