In conductors conduction of electricity takes place due to movement of_______________?
Correct answer: A. electrons only
- A. electrons only
- B. positive ions only
- C. negative ions only
- D. positive and negative ions
- E. none of the above
Explanation
In metallic conductors, current is produced by the drift of free electrons; the positive metal ions remain bound in the crystal lattice. Ion movement applies mainly to electrolytes rather than ordinary metallic conductors.
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