Computer Hardware-III

Power Supplies

Current : Flow of electric Charge or Flow of electricity or flow of electrons (negative

charged particles) through a conductor or wire.

AC             : Alternating Current (~): Flow of Electrons direction will be changed

  alternatively (OR) Polarity will be changed alternatively.

DC             : Direct Current (      ): Always Electrons will be flow in only one direction. (OR)

  polarity will not be changed.

AC Sources: 1. Mains, 2. Output from Stabilizer, UPS and Inverter, 3. Generator etc

DC Sources: 1. Cells,              2. Batteries,               3. AC / DC Adapters 4. Dynamos etc.

Voltage : An electromotive force or potential difference between two points on a circuit

Note: INDIAN VOLTAGE: 230V, 50HZ AC                           US VOLTAGE: 120V,

60HZ AC