Question

What type of materials allows electricity to flow freely?

• A. conductors
• B. insulators
• C. Wood
• D. Copper

Answer 1

Answer: (A), (D)

The correct options are
A

conductors

D

Copper

Electric current is nothing but the flow of electric charges. For a material to conduct electricity easily, it should possess a lot of free electrons. Metals such as copper, silver and gold are good conductors because they have a lot of free electrons. When enough potential difference is applied, any medium will start to conduct electricity. For example, during lightning, the air begins to conduct electricity.