Which of the following substance is not a good conductor of electricity?

Assessment: WAEC SSCE - Physics - 1989 (Objective) Subject: Physics

Question 1 Report

Which of the following substance is not a good conductor of electricity?
Answer Details
Glass is not a good conductor of electricity. This is because glass is an insulator and has very few free electrons that can move and conduct electricity. In contrast, metals such as aluminium and copper are good conductors of electricity because they have many free electrons that can move freely and carry an electric current. The human body and the Earth can also conduct electricity, although their conductivity is lower than that of metals.

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