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A. Protons
B. Electrons
C. Metal atoms
D. Metal ions

Submitted by: Ahmed Khan

Electric current in a solid metal conductor is caused by the movement of electric charge. An electric current is the flow of electric charge. An electron current, the flow of electrons, contributes to an electric current since the electron ‘carries’ negative electric charge.

Correct Answer: Electrons

Last Updated: May 21, 2021