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What else can I help you with?
If an iron rod is heated to a high temperature how would it effect its conductivity?
Generally speaking conductivity of metals decreases as the temperature increases.
What factor should change in electrical conductivity of metals and non metals?
In metals, electrical conductivity increases with higher number of free electrons, which can be influenced by factors like temperature and impurities. In non-metals, electrical conductivity is generally lower due to lack of free electrons, but can increase with doping or introduction of impurities.
Why does the electrical conductivity of pure metal decrease with temperature while that of semiconductors increases?
The conductivity depends on the passage of charged particles especially electrons. In metals electrons are easily available in conduction band and so its conductivity is high. As we increase the temperature then core of atoms vibrate largely. So with positive charge it could easily minimize the electrons in the conduction band and hence fall in conductivity In case of semiconductor there will be usually forbidden gap between valence band and conduction band. So conduction is poor at ordinary temperature. But as we increase temperature that would allow electrons to reach conduction band as covalent bonds get broken. Hence higher conductivity
Do metals increase electrical conductivity with increasing temperature?
Yes, metals generally demonstrate an increase in electrical conductivity as temperature rises. This phenomenon is attributed to the greater mobility of electrons at higher temperatures, allowing them to move more freely through the metal lattice and thus enhance conductivity.
If wood has very low conductivity does it still have low conductivity if it is very hot?
Yes, increasing the temperature of an insulator is not likely to make it more electrically conductive. Resistance generally increases as temperature increases. Some materials conduct electricity better when they are very cold, however.
Temperature coefficient of resistance?
most metals resistance increases with temperature
Can temperature effect the conductivity of material?
Not sure, in my 9th standard (level of Indian standard education),we studied about conductors....."when temperature increases conductivity of a conductor is also increases". but it is not true in all case because of the properties of the conductors. in some case ...'temperature increase the resistance of a conductor increases so conductivity decreases '. for example: in olden days electronic equipments is more efficient when the atmospheric temperature increases or presence of heat .
What factors affect the resistance of material to the flow of energy?
The resistance of a material to the flow of energy is influenced by its conductivity, temperature, dimensions, and the presence of impurities or defects in the material's structure. Materials with high conductivity and low temperature tend to have lower resistance to energy flow, while the opposite is true for materials with low conductivity and high temperature. Additionally, materials with smaller dimensions and fewer impurities typically offer less resistance to the flow of energy.
What combination of factors is most suitable for increasing the electrical conductivity of metals?
Resistivity is a constant for any particular material, and independent of that material's physical dimensions or shape. However, it does vary with temperature which is why resistivity is always quoted at a particular temperature. Variations in resistivity due to temperature change is the reason that the resistance of a material varies with temperature. In SI, resistivity is expressed in ohm metres.
Is the electrical conductivity of molten metals high or low?
Metals are already good electrical conductors, and melting metals increases their electrical conductivity. All that heat (thermal energy) allows electrons a lot more mobility so they can more effectively contribute to current flow.
Why do you fell hotter on a humid day?
it has something to do with physics: every "material" has its own thermal conductivity. that means the energy transferred increases as the thermal conductivity of the material increases. thats why if you tough a piece of wood which has the exact same temperature of a piece of metal it still will feel less warm. because wood's thermal conductivity is lower than metals, it will "transfer" less energy (energy = temperature) per second to your finger, so you will feel it less. so figure thermal conductivity of humid air is higher than dry air.
What are conductivity metals?
Metals have a higher electrical and thermal conductivity than nonmetals.
