Electrical current is the flow (movement) of electric charges. For electric charge to flow there has to be a source of potential difference and a closed (or complete) circuit. For example a light cant be turned on if there is no electrical sources. Battery act as a source so it cant be left out.
mosja Is the phrasal verb appropriate Yes. A battery act s as a source so it cant be left out. CJ
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mosja Is the phrasal verb appropriate
Yes.
A battery acts as a source so it cant be left out.
CJ