Cyclopedia of applied electricity : a practical guide for electricians, mechanics, engineers, students, telegraph and telephone operators, and all others interested in electricity (1905)
American School (Chicago, Ill.) · Chicago : American School of Correspondence · leaf 88
gives the size of the English or Birming-ham wire gauge. The B. & S. is however much more frequentlyused in this country. The Brown and Sharpe gauge is a littlesmaller than the Birmingham for corresponding numbers. Stubs or Birmingham Wire Gauge (B. W. G.) No. Diameter in No. 1 Diameter in No.… … 3 zu z uo OS 3 e ^ >-u IH >JO z THE ELPXTRIC CUKKENT. 15 EXAHPLES FOR PRACTICE. 1. What is the resistance of an annealed silver wire 90 feetlong and .2 inch in diameter at 32° F.? Ans. .O^-j- ohm. 2. What is the resistance of 300 meters of annealed ironwire 4 millimeters in diameter when at a…
Electrical engineering
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