CBSE Class 12 Physics 2014 Outside Delhi Set 1 Paper

Question : 7 of 30

Marks: +1, -0

Why is the use of A.C. voltage preferred over D.C. voltage? Give two reasons

Solution:

Two reasons to use A.C. voltage over D.C. are:
(a)

{\AC}

power can be easily step up or step down using a transformer.
(b) Electricity that is coming to our homes is AC because it comes from a faraway power generation plant so the loss of energy during transmission is very less in the case of

A C

power than

D C

power.

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