Graphite(石墨) is a highly efficient ___ (conduct) of electricity.相关知识点: 试题来源: 解析 conductor 27. "used to" 后接动词原形,表示过去习惯,"be used to" 后接动名词,表示现在习惯。因此答案为 D. take; walking。 28. "lay" 表示放置,"laid" 是其过去式和过去分词,"lain" 是 "lie" 的...
iron, lead and other metal materials. The thermal conductivity decreases with the increase of temperature, even in high temperature, graphite as insulator. Graphite can conduct electricity because each of the carbon atoms
Graphite can conduct electricity because each carbon atom in graphite forms only 3 covalent bonds with other carbon atoms, and each carbon atom still retains 1 free electron to transport charges. (3) Lubricity The lubricating performance of graphite depends on the size of the g...
The delocalised electrons are free to move through the structure, so graphite can conduct electricity. ... Thelayers in graphite can slide over each other because the forces between them are weak. This makes graphite slippery, so it is useful as a lubricant . ...
百度试题 结果1 题目(1)Graphite(石墨) is a highly efficient conductor(conduct) of electricity. 相关知识点: 试题来源: 解析 答案见上 反馈 收藏
The electrical conductivity of a material can be calculated with the help of the resistivity of the material. The resistance of a wire can be calculated with the help resistivity, length and area of the wire. Answer and Explanation: As we know th...
an electromagnetic shielding effect of the electricity-conducting gauze is effectively prevented from losing because of corrosion oxidation of the metal layer on the surface; in addition, the electricity-conducting gauze can conduct heat and radiate, so that the working temperature of electronic equipment...
RayPCB believes that because graphite plane Printed Circuit Boards can operate components at a temperature of 20°C cooler than copper-based boards, they are a viable substitute for copper. When additional layers of the ground plane are used, they generally weigh much less than their copper count...
To determine which material, diamond or graphite, is a good conductor of electricity, we can analyze their structures and the behavior of their electrons.1. Identify the Materials: We are comparing two allotropes of carbon: dia
Q.3. Why is graphite able to conduct electricity while diamond not? Answer – Graphite is the only non-metals that conduct electricity. Because in graphite one carbon Atom attached to 3 carbon atoms and in case one carbon Atom is free to generate electricity. ...