Practical Notes for Electrical Students
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In our eReader you can find the full English version of the book. Read Practical Notes for Electrical Students Online - link to read the book on full screen. Our eReader also allows you to upload and read Pdf, Txt, ePub and fb2 books. In the Mini eReder on the page below you can quickly view all pages of the book - Read Book Practical Notes for Electrical Students
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More will be said upon this point when self-induction is considered.
If the cores were not connected together by the yoke, the poles of the electro- magnet would be much feebler, because there would then be two air gaps to be bridged over by the lines of force instead of one. Further, if a complete circuit of iron were formed by bridging over both upper and lower pairs of core ends by yokes, there would be many more lines of force created through the interiors of the cores, but there would be p...ractically no external field. An external field is, however, required in the case of a " sounder " to cause attraction of its armature, and therefore the only air gap left is that imme- diately beneath it. The rule is, let there be a magnetic circuit FIG. 108.
of iron everywhere except in the particular position where external magnetic action is required.
128. Magnetising Force. The field of force set up in the interior of a coil of wire through which a current is flow- ing is found both by experiment and theoretical deductions to be proportional to the product of the strength of current and the number of turns of wire.
What to read after Practical Notes for Electrical Students?
You can find similar books in the "Read Also" column, or choose other free books by Arthur E Arthur Edwin Kennelly to read onlineMoreLess
To quickly assess the difficulty of the text, read a short excerpt:
More will be said upon this point when self-induction is considered.
If the cores were not connected together by the yoke, the poles of the electro- magnet would be much feebler, because there would then be two air gaps to be bridged over by the lines of force instead of one. Further, if a complete circuit of iron were formed by bridging over both upper and lower pairs of core ends by yokes, there would be many more lines of force created through the interiors of the cores, but there would be p...ractically no external field. An external field is, however, required in the case of a " sounder " to cause attraction of its armature, and therefore the only air gap left is that imme- diately beneath it. The rule is, let there be a magnetic circuit FIG. 108.
of iron everywhere except in the particular position where external magnetic action is required.
128. Magnetising Force. The field of force set up in the interior of a coil of wire through which a current is flow- ing is found both by experiment and theoretical deductions to be proportional to the product of the strength of current and the number of turns of wire.
What to read after Practical Notes for Electrical Students?
You can find similar books in the "Read Also" column, or choose other free books by Arthur E Arthur Edwin Kennelly to read onlineMoreLess
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