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Related to Conductances: Electrical conductance


the ability of a system to conduct electricity, measured by the ratio of the current flowing through the system to the potential difference across it; the reciprocal of resistance. It is measured in reciprocal ohms, mhos, or siemens.


The real part of the admittance of an alternating-current circuit. The admittance Y of an alternating-current circuit is a complex number given by Eq. (1). (1)  The real part G is the conductance. The units of conductance, like those of admittance, are called siemens or mhos. Conductance is a positive quantity. The conductance of a resistor R is given by Eq. (2). (2) 

In general the conductance of a circuit may depend on the capacitors and inductors in the circuit as well as on the resistors. For example, the circuit in the illustration has impedance at frequency &ohgr; given by Eq. (3) and admittance given by Eq. (4), so that the conductance, given by

Eq. (5), depends on the inductance L as well as the resistance R. See Admittance, Electrical impedance

Circuit with a resistor and inductor in seriesenlarge picture
Circuit with a resistor and inductor in series


The real part of the admittance of a circuit; when the impedance contains no reactance, as in a direct-current circuit, it is the reciprocal of resistance, and is thus a measure of the ability of the circuit to conduct electricity. Also known as electrical conductance. Designated G.
(fluid mechanics)
For a component of a vacuum system, the amount of a gas that flows through divided by the pressure difference across the component.

thermal conductance

The time rate of flow of heat through a unit area of material from one of the faces of the material to the other, for a unit temperature difference between the two faces, under steady-state conditions.
References in periodicals archive ?
Mass-specific conductances can be calculated by relating total conductances to fetal weight (Mayhew et al.
Consequently, this approach provides the maximal diffusive conductances achievable under optimal conditions.
Recently, we have shown that total diffusive conductances in cases of IUGR and PE+IUGR are lower than those in uncomplicated or PE pregnancies (Mayhew et al.
The conductance data presented here are representative of the larger set of data that will be collected and used to create a physics-based, semi-empirical model of the recuperator that accounts for mixture and flow-regime (i.
Conjecture 4 Given effective resistances for each pair of vertices of a complete graph, there is exactly one tuple of conductances, which yields the given effective resistances, and there is a formula similar to (1) that determines them.
From this it is easy to deduce that given effective conductances [c.
lf u, v [member of] V(G) are vertices in G and H is the complete graph with vertex set {u, v}, then there exists a conductance [c.
All those individual conductances can be very well represented by an equivalent conductance [C.
t] is the voltage across each of the Individual i'th conductance paths, the effective voltage, [V.