Question

what is the difference between a direct current and an alternating current what is the frequency of AC in India

Answer 1

Direct current always flows in one direction but the alternating current reverses its direction periodically. The frequency of AC in India is 50 Hz and in each cycle it alters direction twice. Therefore AC changes direction 2 50 = 100 times in one second.

Answer 2

In direct current (DC), the electric charge (current) only flows in one direction. Electric charge in alternating current (AC), on the other hand, changes direction periodically. The voltage in AC circuits also periodically reverses because the current changes direction.

the frequency of AC is 50 hertz in India