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[" If an A.C.main supply is given to be ...

[" If an A.C.main supply is given to be "220" V.What "],[" would be the average e.m.f.during a positive half "],[" cycle :- "],[" (1) "198" V (2) "386" V (3) "256" V (4) None of these "],[" 11."]

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