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A material showing perfect conductivity and Meissner effect below a critical temperature?
Wiki User
∙ 9y ago
The Meissner effect refers to the expulsion of magnetic flux when a material becomes superconducting in a magnetic field. A material that shows perfect conductivity is called a superconductor.
Wiki User
∙ 9y ago
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Define thermal conductivity?
ability of the material to resist the temperature
How does the cup a liquid is in affect its temperature?
By the heat conductivity the material the cup is made from.
Which type of heat transfer occurs across a temperature gradient within a solid?
what material has the highest thermal conductivity
Does the value of thermal conductivity depend on the dimension of the specimen?
Thermal conductivity is an intensive property. It is inherent in the material but not dependent on the amount of material. This should not be confused with the rate of heat conduction which can depend on the dimensions of a material. There is one case where the thermal conductivity might depend on the dimension of the material - when the conductivity is not uniform with direction, i.e. where conductivity laterally is different from conductivity longitudinally. When the orientation of the material changes the conductivity, the dimensions can have an effect on the apparent bulk thermal conductivity.
What Is a material that allows heat to flow through it easily?
Thermal conductors let heat move through them. Metals are part of this group.
A material showing perfect conductivity and Meissner effect below a critical temperature Is this true or false?
Superconductor
Why super conductor is not used?
b'coz super conductivity is achieved only when the material is cooled below a critical temperature. if it cooled above the critical temp. than the material ceases to be a super conductor. to maintain it conductivity helium and liquid nitrogen which is not easy 2 be used that is why super conductor can't be used for commercial purposes in our day to day life
Define thermal conductivity?
ability of the material to resist the temperature
How does the cup a liquid is in affect its temperature?
By the heat conductivity the material the cup is made from.
What materials are partially conductive?
conductivity is a result of free electrons meaning that they can be riped away fast and the temperature of the material. a colder material has a lower resistance and higher conductivity. materials like metallic oxides have low conductivity and materials like pure copper and aluminum have high conductivity.
Why critical temperature is lower than melting temperature?
the critical temperature is for the phase stability? When the phase changes,the energy needed is smaller than the material melton,
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.
What influences radiational cooling?
Properties of the material such as thermal conductivity, specific heat, and emissivity, and the temperature of the surroundings.
Which type of heat transfer occurs across a temperature gradient within a solid?
what material has the highest thermal conductivity
What is the meissner effect?
In case of normal material,the magnetic lines of force can penetrate the material,but in case of superconductor material the magnetic lines of forces repels from the material.Since superconductor materials have dimagnetic property.This effect is called meissner effect.
Does the value of thermal conductivity depend on the dimension of the specimen?
Thermal conductivity is an intensive property. It is inherent in the material but not dependent on the amount of material. This should not be confused with the rate of heat conduction which can depend on the dimensions of a material. There is one case where the thermal conductivity might depend on the dimension of the material - when the conductivity is not uniform with direction, i.e. where conductivity laterally is different from conductivity longitudinally. When the orientation of the material changes the conductivity, the dimensions can have an effect on the apparent bulk thermal conductivity.
What Is a material that allows heat to flow through it easily?
Thermal conductors let heat move through them. Metals are part of this group.
