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?
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?

Answer: The direction of current in an alternating current will change constantly, whereas the direction of current in a direct current will not change. In India, the air conditioner changes direction 100 times per second.