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When a current flows through a metal wire, the moving charges are a. positive metal ions. b. only electrons. c. both protons and electrons. d. only protons.
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When a current flows through a metal wire, the moving charges are

a. positive metal ions.
b. only electrons. c. both protons and electrons. d. only protons.

User Danilo Puric
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1 Answer

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When a current flows through a metal wire is only electrons because it is the free electrons that act as charge carriers.
User Sephiith
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