Andrews, Ernest John, 1863-, Howland, Howard Newell, 1865- joint author · New York, London, The Macmillan company · leaf 249
e bridge, used for thesame purposes. In principle they are the same except thatwith the slide-wire bridge the resistances m and n (Fig. 131)are not usually equal, and may be readily changed in valueby merely sliding a contact point along a wire of highresistance. One of the common forms of the… … piece of high-resistance wire, usually German-silver orplatinoid; Jis a piece of metal, carrying a binding-post,and grooved to slide u]3on a scale CT, which is graduated to millimeters. X,the end of J, standsabove the wire AB^so that contact withthe wire may bemade by pressing Ldown. RB is…
Physics
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