What is the full form of "AC" and "DC" used in power supply?

'Direct Current' describes electricity flowing in one direction. DC equipment is marked with + and -, and it will not work if the power is connected the other way round. Or it might work 'backwards'. Usually, DC machines are powered by a battery.

'Alternating Current' uses electricity that keeps changing its direction. This is mostly the sort of power that buildings connected to a 'grid' use. Because the flow of electricity keeps changing direction, you can't use + & -, so the wires are usually colour-coded so that you know which one to connect where.

Most small machines (eg a radio) run on DC power, so if they plug into an electrical socket (AC power outlet), they need to pass the electricity through a 'transformer and rectifier' to turn it into DC, before it reaches the machine's circuitry.

Alternating Current

Direct Current

AC = Alternating Current

DC = Direct Current

Definition Of Ac And Dc

AC stands for Alternating Current

An electric current that reverses direction sinusoidally.

("In the US most household current is AC at 60 cycles per second")

DC stands for Direct Current

An electric current that flows in one direction steadily.

AC equals the provision of an alternating currant. Most of the electrical devices in this nation require AC. DC equals direct current, and is utilized here for very specialized necessity.

simply AC-alternate current

n DC-direct current

full form ac dc power supply

alternative current and direct current.

the current from electricity board is AC

from dry batteries is DC

Alternating current- It constantly changes its direction.

Direct current- It moves in one direction.

Direct current is much safer as it repels, but AC attracts so you can get stuck to it.