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.
Thursday, 30 March 2017
Explain what DC stands for and what it means. Define what a good source of DC would be
The battery we have been using for a
current/voltage source generates direct current, which simply means the
current flows in only one direction.
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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