Question
Different between : Direct Current $(DC)$ and Alternating Current $(AC)$

Answer

Direct Current $(DC)$ Alternating Current $(AC)$
$1$. It flows only in one direction. $1$. Its direction is reversed at regular intervals of time.
$2$. It is obtained with a cell / battery or a $DC$ generator. $2$. It is obtained with an $AC$ generator.
$૩$. Its production is expensive. $3$. Its production is comparatively cheaper.
$4$. There is large loss of electric power when it is transmitted over long distances. $4$. There is comparatively less loss of electric power when it is transmitted over long distances.

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