17 A bar of metal, which is a good thermal conductor, is heated at one end. What is the main method of transfer of thermal energy along the bar?A latice vibrationB movement of atoms of the metal along the barC transfer by electronsD vibration of atoms of the metal bar 相关知识点: ...
When a good thermal conductor in a narrow two-dimensional channel is heated above the critical heat flux of the 位-transition, superheated He I nucleates in the hottest area of the conductor covered with superheated He II. The spread of superheated He I, which has a low thermal conductivity,...
Spark plug (1) comprises an isolating sleeve (2), a central electrode (12) and a mass electrode (4) surrounding the sleeve. The central electrode has a hollow rod (15) in a material which is a bad thermal conductor, and the space is filled (16) with a material which is a good ...
In general, metals are shiny, reflecting most of the light that strikes them. They are malleable and ductile (that is, they will bend under pressure and are not brittle). They have a broad range of melting temperatures (e.g., mercury is a liquid at room temperature, gallium will melt i...
Our body is a conductor of electricity. View Solution Doubtnut is No.1 Study App and Learning App with Instant Video Solutions for NCERT Class 6, Class 7, Class 8, Class 9, Class 10, Class 11 and Class 12, IIT JEE prep, NEET preparation and CBSE, UP Board, Bihar Board, Rajasthan Bo...
Is Diamond a good conductor of heat? Diamond is the most highly prized of gemstones. ... Along with its carbon cousins graphite and graphene, diamond is the best thermal conductor around room temperature, having thermal conductivity of more than 2,000 watts per meter per Kelvin, which is ...
aThe conductor doesn't know Mark Twain 指挥不认识马克吐温[translate] ameknow meknow[translate] a谁住在隔壁 正在翻译,请等待...[translate] a名前が一文字である Name is one letter[translate] a彼此的安慰 Each other comfort[translate] aRuntime: 54:16 运行时间: 54:16[translate] ...
How Styrofoam Insulates Styrofoam is made mostly of air, meaning it is a poor conductor of heat, but an excellent convector. It traps the air in small pockets, blocking the flow of heat energy. This reduces both conduction and convection and makes Styrofoam a good insulator. On the other ...
aNickel Conductor Sputtering 镍指挥飞溅 [translate] aI was graduated from DaLian Maritime University. my major is thermal energy and power engineering major.and I got my bachelor degree after my graduation in the year of 2011. 我从大连海大学是毕业的。 我的少校是热能,并且力量工程学major.and我...
Be aware that down can be very warm and isn’t a good conductor of moisture, which may cause nighttime sweating. Synthetics. There are many synthetic fabrics used for blankets: acrylic and polyester are the most common ones. Synthetic blankets are warm but tend to attract static electricity ...