Q:

What is the difference between an AC and DC current?

A:

Quick Answer

Alternating current (AC) and direct current (DC) are types of voltage that are used for transmitting electricity. DC is constant energy that moves in one direction, whereas AC changes and moves in a wave-like pattern.

Continue Reading

Full Answer

Electricity arrives at consumer locations via AC, which, due to the shape of the current, can travel longer distances than DC. It powers lamps and appliances. Flashlights and other battery-powered devices use DC power. A laptop computer uses both: AC power is delivered from the wall outlet and transformed (in the black box that is part of the power cable) on its way to the machine, where it delivers DC to the computer battery.

Learn more about Electricity

Related Questions

  • Q:

    What are the different types of electricity?

    A:

    There are many different types of electricity, including solar, wind, fossil fuel, hydro, and nuclear. Most of the electricity generated in the world comes from fossil fuel, nuclear and hydro power plants, although, as of 2014, renewable energy is quickly increasing in an effort to reduce carbon dioxide emissions.

    Full Answer >
    Filed Under:
  • Q:

    What are the two types of electricity current?

    A:

    The two types of electricity current are direct current, or DC, and alternating current, or AC. In a direct current, the electrons flow only in one direction. The electrons flow back and forth in an alternating current.

    Full Answer >
    Filed Under:
  • Q:

    What are wiring colors?

    A:

    In alternating current (AC) and direct current (DC) powered circuits, different wiring colors are used to identify the purpose of individual wires. Some jurisdictions require all wiring colors of a powered circuit to be disclosed in legal documents, whereas others may only color code some of the wires.

    Full Answer >
    Filed Under:
  • Q:

    What is the difference between AC and DC adapters?

    A:

    Alternating Current (AC) and Direct Current (DC) adapters differ across factors, such as the amount of energy that can be carried, flow of electrons and passive parameters. According to Diffen, he most basic difference between an AC and DC adapter is that the former has rotating magnetism along the wire, while the latter has steady magnetism along the wire.

    Full Answer >
    Filed Under:

Explore