Question
Fri February 25, 2011 By: Padmini Kommu

Why is cos theta taken zero in deriving average value of power and why is cos(2wt+phi)taken 0 Pls explin quickly we've got xams!!!

Expert Reply
Mon February 28, 2011
Dear student,
 
The average power in an inductor or capacitor is zero. Hence,when power = 0, cos 0 = 0.
 
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