Written by the Fiveable Content Team โข Last updated September 2025
Verified for the 2026 exam
Verified for the 2026 examโขWritten by the Fiveable Content Team โข Last updated September 2025
Definition
Electrical circuits are pathways through which electric current flows. They consist of interconnected components, such as batteries, resistors, and switches, that allow the flow of electrons.
Resistance is a measure of how much a component opposes the flow of current in a circuit. It determines how much voltage is needed to produce a certain amount of current.
Ohm's Law: Ohm's Law states that the current flowing through a conductor is directly proportional to the voltage applied across it and inversely proportional to its resistance. It can be expressed as I = V/R, where I is current, V is voltage, and R is resistance.