VIDEO: Difference between direct current and alternating current

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There is no difference between direct current and alternating current for electricity use. This is solely due to the type of power generation. Every voltage source has two poles, namely a plus and a minus pole. The electrons are sucked in at the positive pole and pushed out again at the negative pole.

The difference between direct current and alternating current - the direct current

  • You can easily tell the difference between direct current and alternating current in an experiment.
  • For example, if you take an incandescent lamp and connect it to a battery, the lamp is operated with direct current, because the current will always flow in the same direction. The plus pool and the minus pole always remain in the same place, which means that the electrons are always traveling in the same direction.
  • Basically, all accumulators work with direct current, as are all accumulators and batteries. They also have a plus and a minus pole.

The principle of alternating current

  • You should explain alternating current in such a way that, in contrast to direct current, the current flow moves in different directions at certain intervals. Here the current flow between the positive pole and the negative pole changes at regular intervals. The electrons swing back and forth. This does not result in a complete cycle.
    • Direct current - alternating current is converted in this way

    Direct current is required to operate many electrical and electronic devices. …

  • You can explain this in a second attempt with a bicycle alternator. This also generates alternating current. During the change, the electrons stop working here for a moment and the lamp goes dark.
  • Our household electricity also works with alternating current. It depends on the frequency of the current flow. Here the explanation is very simple.
  • The frequency here is 50 Hz. This means that the polarity in the cable switches back and forth between plus and minus 50 times. That is why almost all common household appliances work with this frequency.
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