conductivity hâzandegi Fr.: conductivité 1) General: A measure of the ability to transmit, as electricity, thermal energy,
sound, and so on. From → conductive + → -ity suffix forming abstract nouns expressing state or condition. |
electrical conductivity hâznadegi-e barqi Fr.: conductivité électrique A measure of a material's ability to conduct an electrical current. It is the reciprocal of the → resistivity. Conductivity is expressed by σ = ne^{2}l/(2mv), where n is the number of electrons per cm^{3} volume of the → conductor, e is the → electron charge, l is the → mean free path, m is the → electron mass, and v is the arithmetic mean velocity of thermal motion of electrons at a given temperature. → electrical; → conductivity. |
extrinsic photoconductivity šidhâzandegi-ye borungin Fr.: photoconductivité extrinsèque Photoconductivity due to the addition of impurities or external causes. → extrinsic; → photoconductivity. Šidhâzandegi, → photoconductivity; borungin, → extrinsic. |
n-type conductivity hâzandegi-ye gune-ye n Fr.: conductivité de type n The conductivity in a semiconductor caused by a flow of electrons, whereas p-type conductivity is caused by a flow of holes. n standing for → negative; → type; → conductivity. |
superconductivity abar-hâzandegi Fr.: superconductivité The phenomenon in which certain materials, when cooled to a sufficiently low temperature, lose all resistance to the flow of electricity. → super-; → conductivity |
thermal conductivity hâzandegi-ye garmâyi Fr.: conductivité thermale In → thermal conduction, the amount of heat passing across unit area per unit time and per unit → temperature gradient. → thermal; → conductivity. |