Electric Circuits

These flashcards cover key vocabulary and concepts related to electric circuits, focusing on charge carriers, current, resistance, and related properties.

Charge carrier density (n)

The number of charged particles per unit volume in a material.

Drift velocity (v)

The average speed at which charged particles move through a conductor.

Charge of a single charged particle

The fundamental charge constant, approximately 1.6 x 10^-19 Coulombs.

Formula for current (I)

I = nqvA, where n is charge carrier density, q is charge, v is drift velocity, and A is the cross-sectional area.

Resistance

The opposition to the flow of electric current in a material, which depends on the material's dimensions and resistivity.

Resistivity

A material property that quantifies how strongly a given material opposes the flow of electric current.

Current

The flow of electric charge, usually measured in Amperes (A), representing the rate of charge passing through a conductor.