Electricity and magnetism for advanced students (1920)
Starling, Sydney George, 1873- · London Longmans, Green · leaf 116
o.se it is required to calibrate the ammeter A (Fig. 107).A suitable current is passed through it, the standard resistance R beingin series with it. The fall of potential over R is compared with that IV. RESISTANCE OF CELL 105 of a standard cell C, which may be a Daniells cell if rough… … Fig, 107. length for the p.d. over the resistance R when current I is flowingin it— p.d. for resistance R = E. .^ 1 J ^ k and, ^~r7 On varying the current by means of the rheostat W, and takinga number of readings for diiferent points on the ammeter scale, acalibration curve may be constructed.…
Electricity · Magnetism
Internet Archive · Gerstein Library, University of Toronto · Public Domain Mark 1.0. Free to use for anything.
![An illustration from [Electric engineering.] (1902)](https://img.insideoutlibrary.com/img/200/ia-electricengineer04inte-475-248.webp)
