Electrical resistivity and conductivity - Wikipedia
网页In electrolytes, electrical conduction happens not by band electrons or holes, but by full atomic species traveling, each carrying an electrical charge. The resistivity of ionic solutions (electrolytes) varies tremendously with concentration – while distilled water is almost an insulator, salt water is a reasonable electrical conductor.
Electrical conductor - Wikipedia
网页In physics and electrical engineering, a conductor is an object or type of material that allows the flow of charge (electric current) in one or more directions. Materials made of metal are common electrical conductors. The flow of negatively charged electrons generates electric current, positively charged holes, and positive or negative ions in ...
Electrical conduction | physics | Britannica
网页In a conductor, the valence band is partially filled, and since there are numerous empty levels, the electrons are free to move under the influence of an electric field; thus, in a metal the valence band is also the conduction band.
電傳導 - 维基百科，自由的百科全书
网页電傳導（英語： electrical conduction ）是指介質內，載電荷的粒子的運動。稱這些粒子為電荷載子。它們的運動形成了電流。這運動可能是因為感受到電場的作用而產生的，或是因為載子分佈的不均勻引發的擴散機制的結果。對於不同的物質，電荷傳輸的物理參數 ...
Electrical Conduction in Metals and Semiconductors
网页A good understanding of charge carrier transport and electrical conduction is essential for selecting or developing electronic materials for device applications. Of particular importance are the drift mobility of charge carriers in semiconductors …
14.5: Conduction - Physics LibreTexts
网页2022年2月20日 · Conduction is caused by the random motion of atoms and molecules. As such, it is an ineffective mechanism for heat transport over macroscopic distances and short time distances. Take, for example, the temperature on the Earth, which would be unbearably cold during the night and extremely hot during the day if heat transport in the atmosphere ...
网页Electrical conduction is the movement of electrically charged particles through a transmission medium. The movement can form an electric current in response to an electric field. The underlying mechanism for this movement depends on the material.
What is electrical conduction? - Physics Network
网页2023年5月21日 · A conductor, or electrical conductor, is a substance or material that allows electricity to flow through it. In a conductor, electrical charge carriers, usually electrons or ions, move easily from atom to atom when voltage is applied.
The Definition of Conduction in Physics - ThoughtCo
网页2018年12月22日 · Electrical conduction happens when a material allows an electrical current to pass through it. Whether this is possible depends on the physical structure of how the electrons are bound within the material and how easily the atoms can release one or more of their outer electrons to neighboring atoms.
Electrical Conductivity - Encyclopedia.com
网页2018年5月23日 · Electrical conductivity is the ability of a material to carry the flow of an electric current (a flow of electrons). Imagine that you attach the two ends of a battery to a bar of iron and a galvanometer. (A galvanometer is an instrument for measuring the flow of electric current.)