When a current flows through a metal wire, the moving charges are
A) only electrons.
B) negative metal ions.
C) positive metal ions.
D) both protons and electrons.
E) only protons.

Question

Quizplus · Accepted Answer

In a metal wire, the moving charges are electrons. The structure of metals allows electrons to move freely when a voltage is applied, while the metal ions remain fixed in their lattice positions.

When a Current Flows Through a Metal Wire, the Moving