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How is the current generated? The current is generated because of the positive and negative charges. The electrons are inside the metal conductor and actually flow from the negative electrode to the positive electrode. It can be imagined that there is a positive charge on the positive side of the power supply. Inside the metal conductor, the nucleus has little force on the electrons, and the electrons are easily separated from the nucleus. So the electrons in the metal conductor close to the positive electrode of the power source are first attracted by the positive charge of the positive elect