Principles and practice of electrical engineering (1914)
Gray, Alexander, 1882-1921 · New York [etc.] McGraw-Hill Book Company, inc. · leaf 55
Fig. 38. … Fig. 39.—Liquid rheostat. The liquid is cooled in the lower chamber by water which flowsthrough cooling pipes. This cooling chamber sometimes takes theform of a concrete tank made large enough to allow the rheostatto be self cooling. Art. 38] RHEOSTATS AND RESISTORS 31 Liquid rheostats are largely…
Electrical engineering
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