Q23 of 32 Page 100

What is the difference between a direct current and an alternating current? How many times does AC used in India change direction in one second?

The difference between Alternating current and Direct current are:


Alternating current reverses the direction of the current periodically as reflected in the name ‘Alternating’ which means changing current whereas the direct current flows only in one direction and don’t reverses the direction of current. D.C can be transmitted over long distances without loss of energy but Alternating current can’ t be transmitted to long distances.


AC used in India changes its direction at rate of 100 times in a second.


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