define alternating current and direct current eg why alternating current is preferred over direct current transmission or long distance
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a.c current or alternative current change its direction at a regular intervals of time.
but d.c or direct current do not reverses .
as a.c can change its direction so a little power is loss while transfer.
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but d.c or direct current do not reverses .
as a.c can change its direction so a little power is loss while transfer.
please mark brainlist.
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