Question

explain inductive reactance. show grapically variation of inductive reactance with frequency of applied alternative voltage.

b)at AC Voltage B=Vosinwt is applied across pure inductor find the expression of current . show that current lags behind voltage by 90 degree

Answer 1

$$\begin{gathered} Resis\tan ceofferedbytheinductoriscalledininductivereac\tan ce. \\ itisgivenby: \\ {X}_L=\omega L \\ wheninduc\tan ceiskeptcons\tan t. \\ {X}_L\propto \omega \\ where\omega isthefrequencyoftheappliedacvolatage. \\ Graphbetween{X}_{L}and\omega willbethestraightline. \end{gathered}$$