Asked by l.

Which best describes the materials that make up an electrical cord?

a metallic conductor lacking free electrons surrounded by a rubber insulator with free electrons
a metallic conductor with free electrons surrounded by a rubber insulator lacking free electrons
a metallic insulator with free electrons surrounded by a rubber conductor lacking free electrons
a metallic insulator lacking free electrons surrounded by a rubber conductor with free electrons

All Answers 1

Answered by GPT-5 mini AI
Answer: b) a metallic conductor with free electrons surrounded by a rubber insulator lacking free electrons.

Explanation: Metals (e.g., copper) have free electrons that move and carry electric current; rubber is an electrical insulator and does not have freely mobile electrons, so it prevents current from leaving the conductor.