A conductor has low electrical resistance when hot and higher electrical resistance when cold. This is due to the increased thermal agitation of electrons in the conductor when it is hot, causing higher resistance compared to when it is cold.
No, a flask does not necessarily have to be a good conductor of heat. In fact, many flasks are designed with insulating materials to help maintain the temperature of the liquid inside, whether hot or cold. So, a flask can be effective at keeping beverages hot or cold without being a good conductor of heat.
Plastic is a poor conductor of heat, so a plastic cup can be considered a good insulator. It will help to keep hot drinks hot and cold drinks cold for longer periods of time compared to a material that is a good conductor like metal.
Cork is actually a poor conductor of heat due to its low thermal conductivity. This makes it a great insulator, helping to keep cold or hot temperatures from easily passing through it.
Air moves from hot to cold.
Heat flows from hot to cold.
No, hot water is a better conductor of electricity than cold water. This is because warmer water molecules have more kinetic energy, allowing for better electron movement and increased conductivity.
No, a flask does not necessarily have to be a good conductor of heat. In fact, many flasks are designed with insulating materials to help maintain the temperature of the liquid inside, whether hot or cold. So, a flask can be effective at keeping beverages hot or cold without being a good conductor of heat.
Plastic is a poor conductor of heat, so a plastic cup can be considered a good insulator. It will help to keep hot drinks hot and cold drinks cold for longer periods of time compared to a material that is a good conductor like metal.
For me different types of materials respond differently to temperature changes. A computer engineer designing a circuit must be able to predict if the conductivity of each material in the device will be within an acceptable range over the expected temperature range of operation of the device.
yeah
yes it is a conductor because today we can get hot water and cold water it can be dirty or clean.
you tell me if you fill a thermos with hot soup or Hot Chocolate put the lid on and then touch it is it hot or cold. odds are it is warm so it is hard to say. but the thermos is an insulator
what happens when you are running in cold weather and or hot weather at different temperatures what happens when you are running in cold weather and or hot weather at different temperatures
plot of conductor sag and span lengths
The only limit on how much current the conductor can carry, regardless ofthe weather, is the amount of current that causes the conductor to melt.The current in such a conductor depends on the voltage between its ends,and on the resistance of the conductor. The resistance of the conductor issomewhat less when it's cold, so a given voltage would result in more current.
hot because when its cold it turn hot
you tell me if you fill a thermos with hot soup or hot chocolate put the lid on and then touch it is it hot or cold. odds are it is warm so it is hard to say. but the thermos is an insulator