Microscopic View of Current definitions Flashcards
Microscopic View of Current definitions
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Drift velocity
The speed of electrons in a conductor, influenced by collisions and the electric field.Electric field
A force field around charged particles, affecting electron movement in conductors.Mean free time
The average time between electron collisions in a conductor.Electron charge
The fundamental charge carried by an electron, affecting current flow.Electron mass
The mass of an electron, a factor in calculating drift velocity and current.Free electron density
The number of free electrons per cubic meter in a conductor.Current density
The amount of electric current flowing per unit area in a conductor.Resistivity
A material's inherent resistance to the flow of electric current.Conductivity
A material's ability to conduct electric current, inverse of resistivity.Cross-sectional area
The area of a conductor's cross-section, affecting current calculation.Total electron density
The total number of electrons per cubic meter in a conductor.Potential difference
The voltage across a conductor, creating an electric field.Collision
An interaction between electrons and atoms, affecting drift velocity.Ohmmeters
A unit of measurement for resistivity and conductivity.Copper
A common conductor with specific conductivity and electron density properties.