GK
PHYSICS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Conductors
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Insulators
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Semiconductors
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Superconductors
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Detailed explanation-1: -Wood is an insulator because it donot conduct electricity.
Detailed explanation-2: -Materials that do not let current flow easily are called insulators. Most nonmetal materials such as plastic, wood and rubber are insulators.
Detailed explanation-3: -Wood is a natural insulator due to air pockets within its cellular structure, which means that it is 15 times better than masonry, 400 times better than steel, and 1, 770 times better than aluminum. In addition, lightweight wood framing methods allow easy installation of additional fibre or foil insulation.
Detailed explanation-4: -Wood doesn’t have any free electrons, so it’s a bad conductor of electricity.
Detailed explanation-5: -Some common insulator materials are glass, plastic, rubber, air, and wood. Insulators are used to protect us from the dangerous effects of electricity flowing through conductors. Sometimes the voltage in an electrical circuit can be quite high and dangerous.