The power supply or laptop DC adapter converts the wall outlet DC power into AC power True or false?

Answered on

 False.

The power supply or laptop DC adapter actually converts AC (Alternating Current) power from the wall outlet into DC (Direct Current) power that is suitable for use by your laptop. Inside the adapter is circuitry that changes the 110-240 volts AC from your wall outlet into a smaller DC voltage typically ranging between 5-20 volts that the laptop needs to operate.