Physics Lecture Flashcards

Flashcards covering key vocabulary from the Physics lecture on electric circuits.

Electromotive force (emf)

The maximum potential difference a battery or power source can give a circuit.

Electrical Current

The net amount of charge through a point in the circuit per unit time.

Ampere

Unit of electric current, equal to Coulomb/second.

Resistance

Opposition to the flow of electric current.

Resistivity (ρ)

Density of 'bumps' that slow down electrons in a conductor.

Ohm's Law

V = IR, where V is voltage, I is current, and R is resistance.

Ohm (Ω)

Unit of resistance.

Series Wiring

Components connected end to end in a circuit.

Parallel Wiring

Components connected such that both ends are connected providing multiple paths for current.

Kirchhoff’s Loop Law

The sum of the voltage drops in a closed loop equals the EMF.