Opening the text

The Study of Elementary Electricity and Magnetism by Experiment: Containing Two Hundred Experiments Performed with Simple, Home-made ApparatusSt. John, Thomas M. (Thomas Matthew)

Science

The Study of Elementary Electricity and Magnetism by Experiment: Containing Two Hundred Experiments Performed with Simple, Home-made Apparatus

Name: The Study of Elementary Electricity and Magnetism by Experiment: Containing Two Hundred Experiments Performed with Simple, Home-made Apparatus
Author: St. John, Thomas M. (Thomas Matthew)

St. John, Thomas M. (Thomas Matthew)

Electricity -- Experiments; Magnetism -- Experiments

The table at the bottom gives a comparison between the fractional and
decimal parts of an inch. Space can not be given here for a series
of examples showing the many uses of this table. (See "Elementary
Electrical Examples.")


COPPER WIRE TABLES.

(Based on the
B. A. Unit.)

    =====+=======+=========+=======+===================================+
    Gauge| DIAM- |Sectional|Capac- |                OHMS               |
         | ETER. |  AREA   | ity.  |                                   |
    -----+-------+---------+-------+-----------+----------+------------+
    B.&S.|   In  |  In     |In Amp-|    Per    |    Per   |    Per     |
     No. |1000ths|Circular | eres. |   1,000   |   Mile.  |   Pound.   |
         |       |  Mils.  |       |    feet.  |          |            |
    -----+-------+---------+-------+-----------+----------+------------+
     0000|.460   |211600.  | 312.  |     .04906|    .25903|     .000077|
      000|.40964 |167805.  | 262.  |     .06186|    .32664|     .00012 |
       00|.3648  |133079.  | 220.  |     .07801|    .41187|     .00019 |
        0|.32486 |105534.  | 185.  |     .09831|    .51909|     .00031 |
        1|.2893  | 83694.  | 156.  |     .12404|    .65490|     .00049 |
        2|.25763 | 66373.  | 131.  |     .15640|    .8258 |     .00078 |
        3|.22942 | 52634.  | 110.  |     .19723|   1.0414 |     .00125 |
        4|.20431 | 41743.  |  92.3 |     .24869|   1.313  |     .00198 |
        5|.18194 | 33102.  |  77.6 |     .31361|   1.655  |     .00314 |
        6|.16202 | 26251.  |  65.2 |     .39546|   2.088  |     .00499 |
        7|.14428 | 20817.  |  54.8 |     .49871|   2.633  |     .00792 |
        8|.12849 | 16510.  |  46.1 |     .6529 |   3.3    |     .0125  |
        9|.11443 | 13094.  |  38.7 |     .7892 |   4.1    |     .0197  |
       10|.10189 | 10382.  |  32.5 |     .8441 |   4.4    |     .0270  |
       11|.090742|  8234.  |  27.3 |    1.254  |   6.4    |     .0501  |
       12|.080808|  6530.  |  23.  |    1.580  |   8.3    |     .079   |
       13|.071961|  5178.  |  19.3 |    1.995  |  10.4    |     .127   |
       14|.064084|  4107.  |  16.2 |    2.504  |  13.2    |     .200   |
       15|.057068|  3257.  |  13.6 |    3.172  |  16.7    |     .320   |
       16|.05082 |  2583.  |  11.5 |    4.001  |  23.     |     .512   |
       17|.045257|  2048.  |   9.6 |    5.04   |  26.     |     .811   |
       18|.040303|  1624.  |   8.1 |    6.36   |  33.     |    1.29    |
       19|.03589 |  1288.  |  .... |    8.25   |  43.     |    2.11    |
       20|.031961|  1021.  |  .... |   10.12   |  53.     |    3.27    |
       21|.028462|   810.  |  .... |   12.76   |  68.     |    5.20    |
       22|.025347|   642.  |  .... |   16.25   |  85.     |    8.35    |
       23|.022571|   509.  |  .... |   20.30   | 108.     |   13.3     |
       24|.0201  |   404.  |  .... |   25.60   | 135.     |   20.9     |
       25|.0179  |   320.  |  .... |   32.2    | 170.     |   33.2     |

Public-domain text, read in full here on John Shaqi.

Opening the text

The Study of Elementary Electricity and Magnetism by Experiment: Containing Two Hundred Experiments Performed with Simple, Home-made ApparatusSt. John, Thomas M. (Thomas Matthew)

Science

The Study of Elementary Electricity and Magnetism by Experiment: Containing Two Hundred Experiments Performed with Simple, Home-made Apparatus

St. John, Thomas M. (Thomas Matthew)

Electricity -- Experiments; Magnetism -- Experiments

The table at the bottom gives a comparison between the fractional and
decimal parts of an inch. Space can not be given here for a series
of examples showing the many uses of this table. (See "Elementary
Electrical Examples.")


COPPER WIRE TABLES.

(Based on the
B. A. Unit.)

    =====+=======+=========+=======+===================================+
    Gauge| DIAM- |Sectional|Capac- |                OHMS               |
         | ETER. |  AREA   | ity.  |                                   |
    -----+-------+---------+-------+-----------+----------+------------+
    B.&S.|   In  |  In     |In Amp-|    Per    |    Per   |    Per     |
     No. |1000ths|Circular | eres. |   1,000   |   Mile.  |   Pound.   |
         |       |  Mils.  |       |    feet.  |          |            |
    -----+-------+---------+-------+-----------+----------+------------+
     0000|.460   |211600.  | 312.  |     .04906|    .25903|     .000077|
      000|.40964 |167805.  | 262.  |     .06186|    .32664|     .00012 |
       00|.3648  |133079.  | 220.  |     .07801|    .41187|     .00019 |
        0|.32486 |105534.  | 185.  |     .09831|    .51909|     .00031 |
        1|.2893  | 83694.  | 156.  |     .12404|    .65490|     .00049 |
        2|.25763 | 66373.  | 131.  |     .15640|    .8258 |     .00078 |
        3|.22942 | 52634.  | 110.  |     .19723|   1.0414 |     .00125 |
        4|.20431 | 41743.  |  92.3 |     .24869|   1.313  |     .00198 |
        5|.18194 | 33102.  |  77.6 |     .31361|   1.655  |     .00314 |
        6|.16202 | 26251.  |  65.2 |     .39546|   2.088  |     .00499 |
        7|.14428 | 20817.  |  54.8 |     .49871|   2.633  |     .00792 |
        8|.12849 | 16510.  |  46.1 |     .6529 |   3.3    |     .0125  |
        9|.11443 | 13094.  |  38.7 |     .7892 |   4.1    |     .0197  |
       10|.10189 | 10382.  |  32.5 |     .8441 |   4.4    |     .0270  |
       11|.090742|  8234.  |  27.3 |    1.254  |   6.4    |     .0501  |
       12|.080808|  6530.  |  23.  |    1.580  |   8.3    |     .079   |
       13|.071961|  5178.  |  19.3 |    1.995  |  10.4    |     .127   |
       14|.064084|  4107.  |  16.2 |    2.504  |  13.2    |     .200   |
       15|.057068|  3257.  |  13.6 |    3.172  |  16.7    |     .320   |
       16|.05082 |  2583.  |  11.5 |    4.001  |  23.     |     .512   |
       17|.045257|  2048.  |   9.6 |    5.04   |  26.     |     .811   |
       18|.040303|  1624.  |   8.1 |    6.36   |  33.     |    1.29    |
       19|.03589 |  1288.  |  .... |    8.25   |  43.     |    2.11    |
       20|.031961|  1021.  |  .... |   10.12   |  53.     |    3.27    |
       21|.028462|   810.  |  .... |   12.76   |  68.     |    5.20    |
       22|.025347|   642.  |  .... |   16.25   |  85.     |    8.35    |
       23|.022571|   509.  |  .... |   20.30   | 108.     |   13.3     |
       24|.0201  |   404.  |  .... |   25.60   | 135.     |   20.9     |
       25|.0179  |   320.  |  .... |   32.2    | 170.     |   33.2     |

Public-domain text, read in full here on John Shaqi.

The Study of Elementary Electricity and Magnetism by Experiment: Containing Two Hundred Experiments Performed with Simple, Home-made Apparatus

The Study of Elementary Electricity and Magnetism by Experiment: Containing Two Hundred Experiments Performed with Simple, Home-made Apparatus

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