Ac Power — CompTIA A+ Core 1 (220-1101) Practice Questions

AC (alternating current) power is the electrical standard delivered from wall outlets to computers and peripherals, and understanding it is tested in the CompTIA A+ Core 1 exam's hardware and power sections. Technicians must know the difference between AC and DC power, recognize that power supplies convert AC to the DC voltages components require, and understand concepts like voltage (120 V in North America, 230 V in much of the world), amperage, and wattage. Safe handling practices, including the risks of capacitor discharge inside power supplies and the importance of proper grounding, are also part of this knowledge area. This foundation helps technicians safely deploy and troubleshoot power-related hardware issues.

Free questions on ac power