Some substances can conduct electricity in certain states. Which of the following can conduct electricity when molten? A. Sugar B. Glass C. Salt D. Wood 相关知识点: 试题来源: 解析 C。盐在熔融状态下可以导电。糖、玻璃和木头通常不能导电。本题涉及物质的导电性,阅读中要抓住关键信息“conduct ...
Which of the following can conduct electricity? A. Rubber B. Wood Copper D. Plastic 相关知识点: 试题来源: 解析 C。解析:铜是金属,金属具有自由电子,能够导电。而橡胶、木头和塑料都是绝缘体,它们内部几乎没有自由移动的电荷,不能传导电流。反馈 收藏 ...
carbon 有一个formate 系graphite 佢用左3粒slectron 去form covalent bond with other carbon 由于系3个bond 佢成为左一个plane 最后个粒electron 就系plane 同plane之间自由游离 由于lee 粒electron 系free electron 所以it conduct electricity
根据第二段Graphene,a material made from a single layer of carbon atoms,is a good electrical conductor resistant to heat and acids.But a working graphene semiconductor which can be controlled to conduct or separate electricity at will,has evaded scientists.(石墨烯是一种由单层碳原子...
To solve the question regarding the process of enhancing the conductivity of a semiconductor by adding impurities, we can follow these steps:1. Understanding Semiconductors: - Semiconductors, such as silicon, have a limited
A substance that can conduct electricity in the molten state but not in the solid state is called a ___. A. metallic conductor B. semiconductor C. non-metal D. electrolyte 相关知识点: 试题来源: 解析 D。electrolyte 是电解质,在熔融状态下能导电而固态时不能导电;metallic conductor 是金属导体...
结果一 题目 3. Which of the following can conduct electricity(导电)?BA. Glass.B. Plastic. C. Oil.D. Water. 答案 答案见上相关推荐 13. Which of the following can conduct electricity(导电)?BA. Glass.B. Plastic. C. Oil.D. Water....
This "smart" paper produced at the University of Washington can conduct electricity and transmit information about its surrounding environment wirelessly to a receiver. Credit: Mark Stone/University of Washington In cities and large-scale manufacturing plants, a water leak in a complicated network of ...
Liu said: "We hope that these two solutions can play a role, so that when cotton and conductive polymer contact each other, they will be mixed together to a certain extent to form a kind of adhesive, but we do not want them to mix too much, or the conductivity will be reduced." ...
Explain why diamond is an electrical insulator and graphite is an electrical conductor. How do we know that matter is composed of atoms? Explain why ionic solids do not conduct electricity in the solid state but are strong conductors in the liquid state and when dissolve...