How is a direct current produced ?
Well to explain how a direct current is produced we have to look again at the electric charges in an atom. A direct current is caused by an imbalance between these electric charges.
In a battery chemical energy is converted into electrical energy. Every battery
is filled with a certain chemical called an electroylite fluid and two
different types of metal. The two different types of metal have different
electrical properties, and one is connected to the negative end of the
battery and the other to the positive end. Both of these metals react
differently
to the electroylite fluid and the metal connected to the negative
terminal
gains electrons and becomes negatively charged while the piece of metal
connected to the
positive terminal looses electrons and becomes positively charged.
While the battery remains unconnected the electrons on the negative terminal
cannot reach the positive terminal.
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If the two terminals of the battery are connected together electrons are
then able to pass long the wire from the negative terminal to the positive
terminal to attempt to balance the electrical charge. As the electrons move
through the wire they loose energy and this energy turns into
heat. Since the energy that the electrons have
comes from chemical energy in the electroylite eventually the chemical
energy runs out and the battery becomes flat. This is a direct current.
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