DIRECT CURRENT
DIRECT
CURRENT
The battery we have been using for
a current/voltage source generates direct current, which simply
means the current flows in only one direction.
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| DIRECT CURRENT |
As long as electrons are flowing through
the atoms of the circuit, work is being done. We can see that
work is being done in this circuit because it lights the light
bulb. The actual amount of electrons that are flowing is determined
by the type and size of the battery as well as by the size and
type of the light bulb. We could reverse the polarity of the battery
by switching the contacts (wires), and the current would flow
in the opposite direction and the bulb would still light.
Either way the battery is connected to the circuit, current can only flow in one direction. Direct current (DC) can also be generated by means other than batteries. Solar cells, fuel cells, and even some types of generators can provide DC current.
Either way the battery is connected to the circuit, current can only flow in one direction. Direct current (DC) can also be generated by means other than batteries. Solar cells, fuel cells, and even some types of generators can provide DC current.
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| DIRECT CURRENT |
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