Text-book of general physics, for the use of colleges and scientific schools (1899)
Hastings, Charles Sheldon · Boston: Ginn & company · leaf 348
Fig. 211. to a certain degree of approximation, is shown in Fig. 211.A and B are two conducting plates between which a con-stant difference of potential is maintainedby means of a water battery (Art. 341). C isa gold leaf suspended from the insulatedknob JD. which may be connected by meansof a wire…
Physics
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