The Design And Construction of a Magnetic Absorption Dynamometer
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In our eReader you can find the full English version of the book. Read The Design And Construction of a Magnetic Absorption Dynamometer 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 The Design And Construction of a Magnetic Absorption Dynamometer
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To quickly assess the difficulty of the text, read a short excerpt:
Then ^ ^ „ ^ 4 TT N I X 2.54 50,000 = ^ 10 L or the ampere turns are WT - 50.000 X 10 X .04 - 50.000 zs-^r.
rn = ' ■ - ^^ r-'^y ^ = 630 ampere 4 X TT X 2.54 2.54 "TT turns approx.
and NI/ coil = 215 Knowing the ampere turns, the next problem was to determine the size of wire to be used.
Assuming 50 volts per coil, use was made of Ohm's Law.
E a HI Let M = mean length of one turn r** = resistance per inch of conductor N = total number of turns I = current 50 = volts per coil - 20 - Then M X r" X... N = total resistance per coil and I = current Then E s RI or 50 = (M X r" X N) X I and r"= . , ^^.vv = --^ — = .0144 ohms.
M X NI 2.1 X 315 Prom table of Belden Cat. #8 #32 wire has res. of .01365 ohms/ inch #32 •* gives 5960 turns/ sq.in (enameled cotton covered) or 2980 turns / .5 sq. in.
or 1490 " / .25 sq. in.
Cubical space for coil s 5.4864 cu. in (total) #32 wire has 81.35 ohms/ cu, in.
5.4864 X 81.35 = 445 ohms total resistance E » 100 „„._ I - ^ = "445 = .8245 amperes.
Check: - NI = 1490 X .2245 s 335 (larger than req'd) #32 wire has 699.8 ohms/ lb.
What to read after The Design And Construction of a Magnetic Absorption Dynamometer?
You can find similar books in the "Read Also" column, or choose other free books by Schreiber, H. F to read onlineMoreLess
To quickly assess the difficulty of the text, read a short excerpt:
Then ^ ^ „ ^ 4 TT N I X 2.54 50,000 = ^ 10 L or the ampere turns are WT - 50.000 X 10 X .04 - 50.000 zs-^r.
rn = ' ■ - ^^ r-'^y ^ = 630 ampere 4 X TT X 2.54 2.54 "TT turns approx.
and NI/ coil = 215 Knowing the ampere turns, the next problem was to determine the size of wire to be used.
Assuming 50 volts per coil, use was made of Ohm's Law.
E a HI Let M = mean length of one turn r** = resistance per inch of conductor N = total number of turns I = current 50 = volts per coil - 20 - Then M X r" X... N = total resistance per coil and I = current Then E s RI or 50 = (M X r" X N) X I and r"= . , ^^.vv = --^ — = .0144 ohms.
M X NI 2.1 X 315 Prom table of Belden Cat. #8 #32 wire has res. of .01365 ohms/ inch #32 •* gives 5960 turns/ sq.in (enameled cotton covered) or 2980 turns / .5 sq. in.
or 1490 " / .25 sq. in.
Cubical space for coil s 5.4864 cu. in (total) #32 wire has 81.35 ohms/ cu, in.
5.4864 X 81.35 = 445 ohms total resistance E » 100 „„._ I - ^ = "445 = .8245 amperes.
Check: - NI = 1490 X .2245 s 335 (larger than req'd) #32 wire has 699.8 ohms/ lb.
What to read after The Design And Construction of a Magnetic Absorption Dynamometer?
You can find similar books in the "Read Also" column, or choose other free books by Schreiber, H. F to read onlineMoreLess
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