The element that is a poor conductor of heat is ___. A. Aluminum B. Gold C. Lead D. Plastic 相关知识点: 试题来源: 解析 D。塑料(Plastic)是热的不良导体。铝(Aluminum)、金(Gold)和铅(Lead)都是良好的热导体,所以选择 D。反馈 收藏 ...
Carbon is a non-metal and therefore has covalent bonds. However, in this experiment, it exhibited metallic properties. Carbon in the form of graphite is the only non-metallic element that conducts electricity. As we all know,graphiteis composed of sheets of hexagons of carbon atoms joined by ...
百度试题 结果1 题目,Air is a good conductor of heat・( ) 相关知识点: 试题来源: 解析 错误 反馈 收藏
A conductor, or electrical conductor, is a substance or material that allows electricity to flow through it. In a conductor, electricalchargecarriers, usuallyelectronsor ions, move easily fromatomto atom when voltage is applied. Most metals like copper are considered good conductors, while nonmetals...
The invention concerns a heat conductor that can be easily mounted on a geometric pattern in a radiant element of a cooking plate and that has good radiation properties. To this end, the heat conductor disclosed is separated from the metal foil in line with the shape or partial shape of ...
Can the process of induction cause a neutral conductor to be repelled from a charged insulator? Explain. Which of the following best characterizes electrical insulators? A. charges on the surface don t move B. high tensile strength C. electric charges move freely ...
A good conductor of heat is a good conductor of electricity. Why? Sensitive Instruments can detect the passage of as few as 60 electrons/s. To what current does this respond? Give an example of a good conductor, a fair conductor, a partial conductor, and an insulator. ...
6. Wood is a poor conductor (conduct) of heat and electricity. 相关知识点: 试题来源: 解析 答案见上6.conductor:体前 的不定冠词a和形容词 poor及空后的介词 of可知,设空处应 用名词形式。 结合句意可知,此处意为“ (电或热的)导体” , 故填 conductor。 反馈 收藏 ...
百度试题 结果1 题目3. Which of the following is the best conductor of heat?2(1) A paper plate(2) A metal plate(3) A ceramic plate(4) A wooden plate 相关知识点: 试题来源: 解析 2 反馈 收藏
THE INVENTION REFERS TO A HEAT CONDUCTOR THAT CAN BE EASILY MOUNTED ON A GEOMETRIC DRAWING IN A RADIANT ELEMENT OF A COOKING PLATE AND THAT HAS GOOD RADIATION PROPERTIES. FOR THIS, THE EXPOSED HEAT DRIVER IS SEPARATED FROM THE METAL SHEET ACCORDING TO THE TOTAL OR PARTIAL FORM OF THE GEOMET...