Principles and practice of electrical engineering (1914)
Gray, Alexander, 1882-1921 · New York [etc.] McGraw-Hill Book Company, inc. · leaf 55
B far enough to allow thecontact H to close, then current can pass direct from T\ to T%without passing through the liquid. Another type of liquid rheostat is shown in Figs. 38 and 39. 30 PRINCIPLES OF ELECTRICAL ENGINEERING [Chap, vi In this case the plates are fixed but the level of the liquid… … Fig. 38.
Electrical engineering
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