Answer: DC flows in one direction, and AC repeatedly switches direction
Explanation:
DC stands for direct current.
AC stands for alternating current.
When current flows only in single direction, it is known as direct current. When current changes direction i.e. it alternates direction, it is known as alternating current.
There are both AC generators and DC generators.
AC generators supply power to home appliances and small motors. DC generators are used to power large electric motors.