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Frequency is not a characteristic of DC, so defining it by signal or zero frequency is not very clear.
'''DC''' stands for Direct [[Current]]. A DC signal has a zero [[frequency]].
'''Direct Current''' (DC) is an electrical flow that runs in one direction within a [[circuit]]. It is the form of electricity generated by a chemical cell (like in a battery), a solar cell or by a DC generator.
==See Also==
==See Also==