Question 294Electricity & Electronics - Assistant Engineer

The correct answer is A) wood. Wood is a good electrical insulator because it has a high resistance to the flow of electric current. Insulators are materials that do not readily allow the passage of electric charge or current. In contrast, materials like silver, gold, and copper are good electrical conductors, meaning they allow electric current to flow through them easily. The other answer choices (B, C, and D) are all metals, which are generally good conductors of electricity and thus not suitable as electrical insulators.