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CBSE Class 12-science Answered

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!!!
Asked by padmini kommu | 25 Feb, 2011, 12:00: AM
Expert Answer
Dear student,
 
The average power in an inductor or capacitor is zero. Hence,when power = 0, cos 0 = 0.
 
Hope this helps.
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Answered by | 28 Feb, 2011, 02:01: PM
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