Conductance and conductivity - Physics Stack Exchange
Mar 14, 2015 · What is the relationship between conductance and conductivity? Is there any formula that can explain their relationship?
Why does electrolytic conductance increase with dilution?
May 2, 2022 · Both conductance and conductivity decrease with dilution. Both molar conductivity and ion mobility increase with dilution. Note that the former are concave functions and have at some point a …
Why is conductivity defined as the inverse of resistivity?
Oct 30, 2020 · Using conductance and conductivity can be useful when trying to calculate the total resistance of a material whose resistivity varies across its geometry. See this question and this …
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?
Why is the conductance of an insulator not $0$?
Sep 26, 2024 · It only takes a few electrons to get a very little current to flow - look at the specific resistance values and see that they vary across many orders of magnitude. Also consider that …
Explaining how a magnetic field affects currents in a conductor, in the ...
Feb 7, 2021 · In a normal conductor with very, very high conductance, a penetrating electric field accelerates the charges, but the self EMF of the electrons is almost enough to cancel all of the …
In metals, the conductivity decreases with increasing temperature?
Jun 28, 2020 · In a metal, the number of charge carriers is almost unaffected by temperature. There is an enormous number of free electrons per unit volume (compared to a semiconductor like …
How to estimate thermal conductivity of a sample?
Aug 12, 2024 · There is a rectangular sample whose emissivity is known, and I want to estimate its thermal conductivity. A heater with a known heat flux is applied to one end of the sample and a fixed …
Concept of Surface (Sheet) Resistance - Physics Stack Exchange
Dec 15, 2023 · Now we define sheet conductance $\sigma_s$ as the integral on the right hand side, so that we can write $$ J_s = \sigma_s\mathcal E$$ in analogy with the usual "3D" version of Ohm's …
material science - Why are airplane tyres slightly conducting ...
Aug 6, 2021 · As per my knowledge, airplane tyres are slightly conducting, but I do not know why. I think it is for ground conductance but can you explain please?