Conductance and conductivity - Physics Stack Exchange
Conductance is the extrinsic property while conductivity is the intrinsic property. This means that conductance is the property of an object dependent of its amount/mass or physical shape and size, while conductivity is the inherent property of the material that makes up the object.
What is Conductance? - Physics Stack Exchange
What is conductance? I am being said that conductance is inverse of resistance?I do know that resistance is the opposition to the flow of current but do not get conductance? I do know that:it is ease of flow current but my brain doesn't accept it,don't know why. Ain't it so important!Couldn't even find it on wikipedia.
The relation between permittivity and conductivity
As Purcell makes quite clear, conductance is a time-dependent phenomenon, and the distinction between insulators and conductors depends on what timescale you're considering, much like distinguishing solids and liquids depends on the timescale.
What is the difference between ionic conductivity and electrical ...
2023年1月24日 · Is the ionic conductivity the same as the electrical conductivity for an ionic liquid, if one wants to calculate the voltage drop or the electrical resistance?
What is magnetic conductivity? - Physics Stack Exchange
2012年4月19日 · Magnetic conductivity is the inverse of magnetic reluctance and resembles the electrical quantity conductance. Here is a pretty picture of the analogy of electrical and magnetic circuits. By the way, the cite I took the picture off seems quite informative. Let us have an external magnetic field H of uniform intensity.
Why is conductivity defined as the inverse of resistivity?
2020年10月30日 · Thus, conductance is convenient whenever dealing with parallel circuits, among other things. This isn't the only example: you'll find many electrical terms come in duals for the same reasons. For example when applying Thévenin's theorem you'll find it most convenient to think about voltage sources and resistance, but for Norton's theorem you ...
Derivation of Kubo Formula for Hall Conductance
2017年5月2日 · However for a generic momentum $\boldsymbol{q}\neq0$, the Hall conductance $\sigma_{xy}(\boldsymbol{q})$ is no longer quantized to an integer and is no longer related to the topological index (Chern number) of the electronic band structure, for this reason, $\sigma_{xy}(\boldsymbol{q})$ is less investigated.
Calculating conductivity from Green's functions
2012年8月1日 · I am trying to calculate the conductivity in the linear response regime of a disordered electron gas. (or eventually of a mean field Heavy fermion system with known one particle green's functions)....
What conductance is measured for the quantum spin Hall state …
"However, because the Hall conductance of the QSH state vanishes, it is clear that the TKNN or Chern number discussed above, which corresponds to the the value of the Hall conductance in units of e2/h, cannot provide a useful classification of the QSH state.
Why does electrolytic conductance increase with dilution?
2022年5月2日 · I agree that with dilution, specific conductance or conductivity decreases. Conductivity is the conductance of $1\rm\,cm^3$ solution present in between the two electrodes with a cross-sectional area of $1\rm\,cm^2$ and with $1\rm\,cm$ distance between them. In other words, conductivity is the conductance per unit volume ($\rm\,cm^3$).