Electricity and magnetism for advanced students (1920)
Starling, Sydney George, 1873- · London Longmans, Green · leaf 322
hus, - cr . = * ,..,.H).- t + I.\ r If 5 = 0, when f = 0— cr loge - = h.r , c t :. log, • = — == e cr _t q = ec(l — € cr^ ec is the final steady charge in the condenser ; calling this q^ we have— q = q,(l - e-cr). The time constant in this case is cr, _ t:. q = ^o(l - e a). If now the external… … Fig. 306. The curves for q and t for charge and discharge are drawn inFig. 306.
Electricity · Magnetism
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