Question

Which of the following is a set of good conductors of electricity?

Options

• Amber, mica, porcelain

• Rubber, glass, plastic

• Copper, silver, aluminium

• Silk, wool, ebonite

Answer 1

Copper, silver, and aluminium are classic conductors because they contain abundant free electrons. Rubber, glass, and plastic are insulators, while silk, wool, ebonite, and amber are commonly used in friction charging as non-conductors.