Question

What do u mean by ac. in??

Answer 1

ac is the Internet country code top-level domain for Saint Helena, Ascension and Tristan da Cunha. It is administered by NIC.AC, a subsidiary of the Internet Computer Bureau based in the United Kingdom. Registration for this domain is open to anyone.

Answer 2

alternating current (AC) occurs when charge carriers in a conductor or semiconductor periodically reverse their direction of movement.