Equations · equation

Ohm's Law

Circuits · 1827

Equation: V = I·R
Field: Circuits
Named After: Georg Simon Ohm
Symbols: V voltage across a component · I current through it · R its resistance
Year: 1827

Significance

Current flows in proportion to the voltage pushing it — the straight line every circuit design starts from. Dismissed as 'a web of naked fancies' when published; now it's the first equation every electronics student learns.

Skills

TIG Welding Stick Welding MIG Welding Using a Multimeter Building a Circuit on a Breadboard Crimping and Wire Termination Soldering

Minerals

Nickel Gold Galena

Machines

Brushed DC Motor Voltaic Pile Lithium-Ion Cell Photovoltaic Cell Lead–Acid Battery

Related

London Equations Drude Conductivity Fourier's Law of Heat Conduction

Required By

Elements

Referenced by

element

equation

Drude Conductivity Fourier's Law of Heat Conduction Joule Heating London Equations

machine

Brushed DC Motor Lead–Acid Battery Lithium-Ion Cell Photovoltaic Cell Voltaic Pile

skill

Building a Circuit on a Breadboard Crimping and Wire Termination MIG Welding Soldering Stick Welding TIG Welding Using a Multimeter

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From the Equations database in Notion, last edited 2026-08-15. This page is the row, rendered by the build; nothing on it is written by hand.