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conductance    
n. 电导,导率,电导系数

电导,导率,电导系数

conductance
传导 电导

conductance
n 1: a material's capacity to conduct electricity; measured as
the reciprocal of electrical resistance

Conductance \Con*duct"ance\ (k[o^]n*d[u^]k"tans), n. [Conduct,
v. -ance.] (Elec.)
Conducting power; -- the reciprocal of {resistance}. A
suggested unit is the mho, the reciprocal of the ohm.

Conductance is an attribute of any specified conductor,
and refers to its shape, length, and other factors.
Conductivity is an attribute of any specified material
without direct reference to its shape or other factors.
--Sloane's
Elec. Dict.
[Webster 1913 Suppl.]


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  • Conductance and conductivity - Physics Stack Exchange
    What is the relationship between conductance and conductivity? Is there any formula that can explain their relationship?
  • Why is conductivity defined as the inverse of resistivity?
    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 answer for an example
  • 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 $0$?
    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 electricity can be conducted by things other than electrons (e g ionic conduction)
  • Heat current through a material with variable conductance
    Heat current through a material with variable conductance Ask Question Asked 1 year, 4 months ago Modified 1 year, 4 months ago
  • Concept of Surface (Sheet) Resistance - Physics Stack Exchange
    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 law The sheet resistance is just $\rho_s = 1 \sigma_s$ Sheet resistance conductance are a characteristic of the surface itself, not of a particular device
  • The relation between permittivity and conductivity
    I am able to measure relative permittivity $\\varepsilon_r$ of a fluid, and I want to calculate conductivity of same fluid Can anyone suggest me how to do this? I found one formula to calculate
  • In metals, the conductivity decreases with increasing temperature?
    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 germanium), so Fermi Dirac statistics applies As the temperature increases, the scattering events of the electrons with the phonons increase because the number of phonon increases These scattering events increase the
  • Is there a simple way to explain quantised conductance?
    The electrons become quantum particles in a box under applied voltage, while conductance becomes independent of the size of the conductor and quantized, with a conductance quantum of $2e^2 h$ Since you mention the uncertainty principle, you may want to check the simple derivation in this Wikipedia paragraph Also useful:





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