0
What material has high thermal conductivity but low electrical conductivity?
Wiki User
∙ 11y ago
Someone wrote "what material has the highest R-value".
This answer is not conducive to progress in their learning. The "r" in R-value stands for Resistance, that is, resistance to flow of heat.
Conductivity is the reciprocal, or inverse, of the Resistivity.
"Thermal Conductivity" is transfer of Heat. Since Heat is ultimately the jiggling around of small bits of Matter (fundamental particles like electrons, protons and neutrons), then atoms (assemblages of these 3 fundamental particles), then molecules (assemblages of similar or dissimilar atoms), or also the jiggling around of atoms within molecules) - then the material with the highest Resistivity would be the Absence of Matter, this is, Vacuum (not quite a material, strictly speaking, but "found" between the walls of a vacuum, or "Dewar", flask).
For the material with (possibly) the lowest Resistivity, or highest Conductivity, try the Wikipedia article on "Thermal Conductivity". If you're a girl, it may be your best friend.
Wiki User
∙ 13y ago
Wiki User
∙ 12y agoThermal conductivity of air is the lowest. (hydrogen gas is lower)
If you need something solid, cork is pretty awesome. It is almost like air.
If you are looking for a single material, Parylene has very low K.
A vacuum (not the type that you have in your closet) has no thermal conductivity at all.
Wiki User
∙ 11y agoSomeone wrote "rubber". Water's thermal conductivity is about four times that of rubber. Pure water has very low electrical conductivity. Sea water conducts electricity fairly well, due to the high concentrations of various ions like Na+ and Cl- .
Add your answer:
Earn +20 pts
Does sodium have high or low electrical conductivity?
The electric conductivity is 0.139 10 to the 6th power per centimeter. Therefore the conductivity of potassium is low.
Why copper tubing is used in automobiles radiators?
Very high thermal conductivity at modest cost
What elements have the lowest electrical conductivity?
It is sulfur that is the worst electrical conductor, followed by phosphorus and iodine. Want to see a table of the elements listed by conductivity? Sure you do. There is a link below that will take you to one.
What properties make copper a good choice for making electrical wire?
High electrical conductivity and a lower price than silver, the only more conductive metal.
What is temperature lag?
Temperature lag is when the month/time of day when insolation is longest does not match up with when surface temperature is greatest. This is because it takes a while for the sunlight to pass through Earth's atmosphere.
What is conductivity material?
This a material with a high thermal or electrical conductivity.Examples: silver, copper, gold.
Is newspaper a thermal conductor?
Yes, it is a material with a high thermal conductivity.
Do nonmetals or metals have high thermal and electrical conductivity?
Both thermal conductivity and electrical conductivity tend to be higher in metals than in most other materials.
A what is a material through which energy can be easily transferred as heat?
Any material which has high thermal conductivity can easily transfer energy as heat. As far as I know, all metals have high thermal conductivity. Copper, gold and silver especially have high thermal conductivity. Diamond and graphene have VERY high thermal conductivity, so this is not restricted to only metals.
What does thermal conductors mean?
A thermal conductor allows heat to readily flow through itself. An example of a material with a low thermal conductivity would be air, and an example of a material with a high thermal conductivity would be steel.
A material used for electrial wiring must have High viscosity low malleability or high conductivity?
If a material is going to be used for electrical wiring, it must have high conductivity. Conductivity is a noun.
What is pure tungsten?
As a high performance material, pure tungsten has high melting temperature, high density, low vapor pressure, low thermal expansion combined with good thermal conductivity, sufficient electrical resistance and high modulus of elasticity.
Electrical contact materials used in switches brushes and relays must possess which thermal conductivity and melting point?
Electrical contact materials used in switches brushes and relays must possess high thermal conductivity and high melting point.High thermal conductivity dissipates heat effectively and high melting point is to avoid fusing in case of accidental overheating.
What does it mean to have high electrical conductivity?
It means that material conducts electricity well
Do elements that have high electric conductivity also have high thermal conductivity?
Usually it is, but exceptional case is of Graphite which has low thermal conductivity.
How Can Thermal Energy Be Moved?
Using a material with a high thermal conductivity is best. For example silver and copper both have a high thermal conductivity. If you hold one end of a copper pipe in fire, the other end will heat up quite rapidly.
What properties of silver make it useful to humans?
Examples of useful properties: hardness, resistance to corrosion, high thermal conductivity, high electrical conductivity, ductility, maleability, high melting point, easy machining, possibilty to form alloys, insolubility in water, etc.
