what is conductivity?

Answer 1

Electrical conductivity is a measure of a material's ability to conduct an electric current. When an electrical potential difference is placed across a conductor, its movable charges flow, giving rise to an electric current. The conductivity σ is defined as the ratio of the current density to the electric field strength :

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It is also possible to have materials in which the conductivity is anisotropic, in which case σ is a 3×3 matrix (or more technically a rank-2 tensor) which is generally symmetric.

Conductivity is the reciprocal (inverse) of electrical resistivity and has the SI units of siemens per metre (S·m-1). It is commonly represented by the Greek letter σ, but κ or γ are also occasionally used.

Answer 2

What is Conductivity?
Conductivity, or specifically Electrolytic Conductivity (EC), is defined as the ability of a substance to conduct
electric current. It is the reciprocal of the more commonly encountered term, resistivity. All substances possess
conductivity to some degree, but the amount varies widely, ranging from extremely low (insulators such as benzene,
glass) to very high (silver, copper, and metals in general). Most industrial interest is in the conductivity
measurement of liquids, which generally consists of ionic compounds dissolved in water. These solutions have
conductivities approximately midway between insulators and metallic conductors. This conductivity can be
measured quite easily by electronic means, and this offers a simple test which can tell much about the quality
of the water, or the make-up of the solution. A broad line of conductivity equipment is available to measure
liquids ranging from ultra pure water (low conductivity) to concentrated chemical streams (high).

Answer 3

1. Physics. the property or power of conducting heat, electricity, or sound.
2. Also called specific conductance. Electricity. a measure of the ability of a given substance to conduct electric current, equal to the reciprocal of the resistance of the substance.

Answer 4

Conductivity (or specific conductance) of an electrolyte solution is a measure of its ability to conduct electricity. The SI unit of conductivity is siemens per meter (S/m).

Answer 5

If you mean "the conductivity of heat and electricity through an object", it is the degree to which a substance allows heat and electric current to flow through it.

Answer 6

The ability to transfer electricity (sometimes heat). Electrons flow freely in conductors allowing electricity to easily flow from one end to the other. As the metallic atoms are energized by electricity, the electrons flow from one molecule to the next.

The opposite of conductors is insulators where electrons do NOT flow. Such as the plastic on the outside of wires.