Lessons in practical electricity; principles, experiments, and arithmetical problems, an elementary text-book (1902)
Swoope, Coates Walton. [from old catalog] · New York, D. Van Nostrand company · leaf 248
l of potential or volts drop in an electric circuit. In Fig. 202, T is a 228 MEASUREMEXT OF PRESSURE. 229 cylindrical tank filled with water under pressure due to the weightof the piston P, and AB is a pipe for transmitting the water to pointB. With the valve at B closedthe pipe is full of water,… … Fig. 202.—Cylindrical Tank of Water and Trans-mission Pipe to Illustrate the Fall of Potential. and a current of water is passed through the pipe,the pressure on the gauge at A is still 60 pounds,while at B it is only 50 pounds. The weightof water is neglected. There is thus a difference in…
Electricity · Magnetism
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