 | H. V. Keer - Science - 1993 - 404 pages
...electricity. The resistance (R) offered by a conductor to the flow of electric charge is found to be directly proportional to the length (/) and inversely proportional to the area of cross section (a) of the conductor. Therefore, where p is the proportionality constant called the (electrical)... | |
 | Ashok Kr. Mishra - Physics - 2006 - 162 pages
...wire depends upon its (0 material, (ii) length ajid (iii) its area of cross section. The resistance is directly proportional to the length and inversely proportional to the area of the cross- vecion of th^ wire. QA. What do you mean by specific resistances of a wire and what is its unit... | |
 | Sir Joseph John Thomson - 1971 - 566 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... | |
 | J. J. Thomson - 428 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 o in the preceding expression is called the specific resistance... | |
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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. 
