Answer Posted / vinayakamoorthy.k

In india the geration and transmission voltage is AC..
(1.DC generation also available but we could not going to
generate as much as our require because it has some
limitation for commutator & Brush in DC generator and
also transmission of DC supply is so complicated in
compared with AC.
2.Domestic items all are (Manufactured)working in AC)
and also in india transmission voltage for domestic
purpose is AC voltage.so we r using AC supply in domestic
purpose.

how can we change the polarity of Alternating current rapidly? how frequency of ac can be controlled and changed easily?

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Apparent power is expressed as V * I(Conjugate). Why not in V * I ?

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What is meant by system?

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What is meant by derating factor?

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what is POTT and PUTT explain?

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