 | American Academy of Arts and Sciences - Humanities - 1876 - 472 pages
...WIRES BY STRETCHING. BY GEORGE S. I'ISE. Presented, May 10, 1s76. THE electrical resistance of a wire of constant section and material is directly proportional...inversely proportional to the area of the cross-section. When the wire is stretched, its thickness or cross-section, as well as its length, undergoes a change.... | |
 | American Academy of Arts and Sciences - Humanities - 1876 - 424 pages
...WIRES BY STRETCHING. BY GEORGE S. PINZ. Presented, May 10, 1s76. THE electrical resistance of a wire of constant section and material is directly proportional...inversely proportional to the area of the cross-section. When the wire is stretched, its ihickness or cross-section, as well as its length, undergoes a change.... | |
 | Fleeming Jenkin - Electricity - 1873 - 432 pages
...deflections inversely proportional to the total resistances of the circuit. § 3. Resistance in a wire of constant section and material is directly proportional...length and inversely proportional to the area of the cross section. The form of the cross section is a matter of indifference, showing that the resistance... | |
 | Charles William Sleeman - Naval art and science - 1880 - 462 pages
...electricity pass so rapidly as a good conductor, that is, it offers more resistance. Resistance in a wire of constant section and material is directly proportional...length, and inversely proportional to the area of the cross section. The electrical resistance of a conductor must not be considered as analogous to mechanical... | |
 | John W. Urquhart - Electric motors - 1882 - 204 pages
...In such calculations it will prove of sendee to bear in mind the rule that the resistance of a wire of constant section and material is directly proportional...the length and inversely proportional to the area of its cross section. The conductor may be of any shape. It is a matter of indifference what form the... | |
 | Richard Wormell - Electricity - 1882 - 366 pages
...quantity subject to certain laws, the first of which is as follows : — Resistance in a wire of uniform section and material is directly proportional to the...length, and inversely proportional to the area of the cross section. If d be the thickness of the wire, I the length, and w the weight per foot, the II resistance... | |
 | Arthur William Poyser - Electricity - 1889 - 264 pages
...cross section. then R = a which is expressed in words thus : — The resistance in wires of the same material is directly proportional to the length, and inversely proportional to the area of the cross section. Resistance of Liquids and Gases. — Liquids have, compared with metals, high resistances... | |
 | Joseph John Thomson - Electric power - 1895 - 530 pages
...material of which the wire is made we see that the resistance of a wire of uniform cross section is proportional to the length and inversely proportional to the area of the cross section. The quantity denoted by a- in the preceding expression is called the specific resistance... | |
 | Edwin James Houston, Arthur Edwin Kennelly - Electric railroads - 1896 - 392 pages
...wire is the same as that of the trolley wire we have selected as our standard. The resistance will be directly proportional to the length, and inversely proportional to the area of cross-section; or, in other words, if the length be doubled the resistance will be doubled, while if... | |
 | Edwin James Houston, Arthur Edwin Kennelly - Electric railroads - 1896 - 392 pages
...wire is the same as that of the trolley wire we have selected as our standard. The resistance will be directly proportional to the length, and inversely proportional to the area of cross-section ; or, in other words, if the length be doubled the resistance will be doubled, while... | |
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As resistance is directly proportional to the length, and inversely proportional to the area of the cross-section, the required resistance is R = 18.7 X ||||-X |= 10.5 ohms (approx.) Ans. 
