File:Britannica Dynamo 30.jpg
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DescriptionBritannica Dynamo 30.jpg |
English: So long as the diameter of commutation coincides with the line of symmetry, the armature may be regarded as a cylindrical electromagnet producing a flux of lines, as shown ihere. The direction of the self-induced flux in the air-gaps is the same as that of the lines of the external field in one quadrant on one side of DC, but opposed to it in the other quadrant on the same side of DC; hence in the resultant field due to the combined action of the field-magnet and armature ampere-turns, the flux is as much strengthened over the one half of each polar face as it is weakened over the other, and the total number of lines is unaffected, although their distribution is altered. |
Date | |
Source | Encyclopædia Britannica, 1911 |
Author | Encyclopædia Britannica, Volume 8, Slice 9., available freely at Project Gutenberg |
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Public domainPublic domainfalsefalse |
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 |
This image comes from the Project Gutenberg archives. This is an image that has come from a book or document for which the American copyright has expired and this image is in the public domain in the United States and possibly other countries. Note: Not all works on Project Gutenberg are in the public domain. Some public domain works may have trademark restrictions where all references to the Project Gutenberg must be removed unless the following text is prominently displayed according to The Full Project Gutenberg License in Legalese (normative): This eBook is for the use of anyone anywhere at no cost and with almost no restrictions whatsoever. You may copy it, give it away or re-use it under the terms of the Project Gutenberg License included with this eBook or online at www.gutenberg.net. |
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current | 18:52, 17 February 2011 | 236 × 171 (19 KB) | Keith Edkins (talk | contribs) | =={{int:filedesc}}== {{Information |Description={{en|So long as the diameter of commutation coincides with the line of symmetry, the armature may be regarded as a cylindrical electromagnet producing a flux of lines, as shown ihere. The direction of the se |
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