suurus, mis tähistab elektrivoolu tihedust jagatuna voolusuunalise pinnaga
ISQ base quantity
scalar quantity equal to the flux of the electric current density through a given directed surface
scalar quantity equal to the quotient of the net quasi-infinitesimal electric charge dQ transferred through a surface during a quasi - infinitesimal time interval and the duration dt of that interval
Elektrivoolu tugevus läbi pinna on võrdne ajaintervalli jooksul läbi selle pinna läbinud elektrilaengu jagatise piiriga selle intervalli kestuse järgi, kui see kestus kipub olema null, ning pinnale jäävate laengukandjate puhul määratletakse elektrivoolu tugevus läbi selle pinna kõvera.
The electric current through a surface is equal to the limit of the quotient of the electric charge transferred through that surface during a time interval by the duration of this interval when this duration tends to zero. For charge carriers confined to a surface, the electric current is defined through a curve of this surface (see the note to term “lineic electric current”).
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