Question 280Electricity & Electronics - QMED
70% to passWhich of the following materials is a good electrical insulator?
Acopper
Bsilver
Cwood
Dgold
AI Explanation
The correct answer is C) wood. Wood is a good electrical insulator because it has a high electrical resistance, meaning it does not allow electric current to flow easily through it. This property makes wood a suitable material for insulating electrical wires, cables, and other electrical components. In contrast, metals like copper, silver, and gold are good electrical conductors, allowing electric current to flow easily through them, and are not considered good insulators.
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