1 1.why metals are able to conduct heat and electricity?2.why the melting point of magnesium(649 c)i1.elplain why metals are able to conduct heat and electricity?.2.explain why the melting point of magnesium(649 c)is much higher than the melting point of sodium(97.9 c).3.suggest rea...
Why do some metals conduct heat better than other metals?How is heat transferred?Heat Conduction in MetalsElectricity, Magnetism and Electromagnetism Electricity and Magnetism Home Electric Charge Coulombs Law and Inverse Square Law Static Electricity The Flow of Electricity Electric Current Electric ...
When we lower the resistance R we will see more current and thus more heat. Really? That's counter-intuitive to the general observation that "if it's easier for electricity to flow through a wire then it loses less energy so gives off less heat. Here's what an electronics forum disc...
热力学第二定律告诉我们，能量倾向于通过摩擦等过程传播。Any real machine would have moving parts or interactions with air or liquid molecules that would generate tiny amounts of friction and heat, even in a vacuum.任何真正的机器都有运动部件或与空气或液体分子的相互作用，即使在真空中也会产生微量的...
Answer 2: It does get hot, but since it is so thin, and an excellent thermal conductor (being metal), it radiates/conducts away all of its heat so rapidly thatit cools off much faster than anything else. Which metal is the poorest conductor of heat and electricity?
, does not.As it is the free electrons that are responsible for both — a metal’s ability to conduct electricity and its ability to conduct heat, it’s no coincidence that the laws governing the conduction of electricity are very similar to the laws that govern the conduction of heat....
It is important not to burn more fossil fuels(化石燃料) such as coal,oil and natural gas.Such fuels can produce carbon dioxide.Many scientists blame rising temperatures on carbon dioxide trapping heat in the Earth's atmosphere. The world depends on fossil fuels for much ...
conductors, insulators, semi-conductor. Those substances which allow electricity to flow through it are known as conductors, which completely not allow electricity to pass through it is known as Insulators, and the one which is in the midway of the two is known as Semi-conductors....
show signs of decline, perhaps because of over development. By the late 1990s some 70 geothermal electric-generating plants were in operation in California, Utah, Nevada, and Hawaii, generating enough power to supply about a million people. Eighteen countries now generate electricity using geothermal...
In solar towers, huge tanks of molten salt or oil can be used to store any excess heat and use it when needed, so that's how they manage the problem of fluctuating solar irradiance to smooth out electricity production. But in the case of solar panels, there currently isn't any way to...