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Which one of the following is primarily responsible for conduction of current in a metal?

Options

  1. ABound electrons
  2. BFree electrons
  3. CBoth bound and free electrons
  4. DIons

Correct answer

B. Free electrons

Step-by-step solution

In metals, atoms are arranged in a lattice structure, and their outer electrons become delocalised, forming a "sea of electrons." These free electrons can move easily throughout the lattice when an electric field is applied, facilitating the flow of electric current.

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