Journal - Franklin Institute of the State of Pennsylvania (1826)
Franklin Institute, Philadelphia, Franklin Institute (Philadelphia, Pa.) · [Philadelphia : Franklin Institute] · leaf 744
used, one may serve to record variations inelectromotive force and the other to record current variations. Fig. 5 shows a record of the voltage over the primary of small,cheap transformers with an iron core, and the current in theprimary when the secondary is on open circuit. (In the… … towards the right, is one one-hundredth of a second later thanthe line to its immediate left.) In this figure it will be noted that the current attains itsmaximum later than the voltage attains its maximum (i.e., thecurrent lags on the e.m.f. in the inductive circuit) and on measure-ment it will be…
Science · Technology · Meteorology · Patents
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