Both, in a way. Electronic components, including moth components inside the computer, need DC. However, since the power available in homes or offices is AC, a computer is designed to work with this. A computer has a power supply that internally converts AC to DC.
Laptops operate on DC voltage. The 120 volts AC is converted to DC by the charger.
we can use both ac n dc but 95% ac
rectifier. not unique to laptops.
the work is done in the power supply box (the metal box part in the computer, the one you plug the power cord into). It converts AC to DC via transformers, rectifiers, and voltage regulators and has extra circuitry in there to make sure that the voltage doesn't ripple (with the changes in the AC voltage) or spike (e.g., when you first turn it on)
AC
AC power sources are the adapter power sources. DC power sources are the direct power sources. DC stands for direct current, meaning it is a direct source of energy., and AC stands for alternating current, which means it is a secondary source of power.
By using rectification we can convert the AC into DC....
To produce it and distribute it, ac is much easier.
You can plug an AC computer into a DC plug only if you also have an inverter to transform the DC power into the AC power that the computer power supply expects.
Radios use DC power supplies to operate. If a radio is powered from a mains AC supply, a power supply circuit will convert the AC supply to DC. Therefore, a radio may have both a DC and an AC power input but ultimately, the internal circuitry will always use DC.
the car use dc current dear
DC series motors run on DC power. Homes have AC power, not DC power. You could use DC motors in homes if you have a power supply or use a battery, but it is usually more cost effective to use an AC motor.
use a dc power source. preferably an ac/dc power adapter. any dc power source will do.
The rectifier is what changes your AC into DC that the computer can use. Transformer raises or lowers the voltage. So you have 110 volts AC coming into your computers power supply. The Rectifier circuit in there changes the AC voltage to DC voltage but it is still to high for the computer use. The transformer lowers that voltage down to the various voltages that your computer needs
Some do, some don't. It depends mostly on the microcomputer's intended use and requirements for portability: desktop microcomputers require AC powerlaptop and handheld (e.g. cellphones, GPS navigators, PDAs) microcomputers use rechargeable battery DC power and only require AC power during rechargea few microcomputers use disposable battery DC power and never use any AC powerthe microcomputers in unmanned satellites usually use solar cell DC power, there is no AC power where they arethe microcomputers in manned spacecraft usually use fuel cell DC power, but depending on the computer this may be provided either directly as DC or through a power inverteras AC; these fuel cells also provide drinking water as a byproductetc.
ATX computer power supplies provide low volts DC of less than five volts. AT computer power supplies provide low DC only to five and twelve volts.
The power supply changes the 120v ac 60 hz (in the us and canada) to dc 12v, dc 5v, and dc 3.3 v that the computer components can use. The power supply is rated in power supplied as watts of power.
power supply
AC Power is Alternating Current whereas DC Power is Direct Current.
We use the "MOTOR GENERATOR SET" to convert the DC power to AC power we use DC motor and ac generator in it. It is very efficient way to convert the DC power to AC power.