File:Britannica Dynamo 8.jpg
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[edit]DescriptionBritannica Dynamo 8.jpg |
English: In the drum form of homopolar dynamo, the field is divided into two or more projecting poles, all of the same sign, with intervening neutral spaces of equal width, and the span of the loop in the direction of rotation is at least equal to the width of a polar projection, as in the figure where two polar projections are shown. Each side of the loop then plays a dual part; it first cuts the lines of one polar projection and generates an E.M.F., and next becomes an inactive connecting wire, while the action is taken up by the opposite side of the loop which has previously served as a connector but now cuts the lines of the next polar projection. The E.M.F. is thus always in the same direction along the side which is at any moment active. |
Date | |
Source | Encyclopædia Britannica, 1911 |
Author | Encyclopædia Britannica, Volume 8, Slice 9., available freely at Project Gutenberg |
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[edit]Public domainPublic domainfalsefalse |
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This image comes from the 13th edition of the Encyclopædia Britannica or earlier. The copyrights for that book have expired in the United States because the book was first published in the US with the publication occurring before January 1, 1929. As such, this image is in the public domain in the United States. | ![]() |
Public domainPublic domainfalsefalse |
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current | 17:47, 17 February 2011 | ![]() | 313 × 167 (23 KB) | Keith Edkins (talk | contribs) | =={{int:filedesc}}== {{Information |Description={{en|In the drum form of ''homopolar'' dynamo, the field is divided into two or more projecting poles, all of the same sign, with intervening neutral spaces of equal width, and the span of the loop in the di |
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