This video lecture from Alternating Current ((F.Sc. 2nd year physics) This video explains the method of Alternating Current passing through Resistance and Inductor connecting in a series way and the vector form with the concept of lead and lag and also explains its impedance Find more e-learning material and educational video lectures in Urdu at maktab.pk. These videos are free to use for promotional and commercial purpose by keeping the credits to Maktab