PhET Ohm's Law
Shows how voltage and resistance change current in a simple circuit with adjustable sliders.
Artifact by PhET Interactive Simulations (University of Colorado Boulder)
IndexedOpen sourceScience & mathsNo sign-up
Use it
Opens phet.colorado.edu in a new tab. Nothing to install.
- You provide
- Voltage and resistance sliders
- You get
- Current and live equation
- Account
- No sign-up needed
- AI
- No AI: a plain tool
- Your input
- Not stated: check the tool's privacy notes before using private data
- Price
- Free to use
- Made with
- Open-source web app
- Source
- Open source
- Link check
- Answered on Nov 1, 2026
About
PhET Ohm's Law is an open-source web app in the science math category (circuits). It opens in your browser, so there is nothing to install. You provide voltage and resistance sliders and get current and live equation. It needs no account. It is a plain tool: no AI model is involved. The source code is public on GitHub (phetsims/ohms-law).
Category: Science & maths · circuits
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Details
- Auth
- No auth
- License
- Open source
- Repository
- github.com/phetsims/ohms-law
- First seen
- Oct 31, 2026
- Last checked
- Nov 1, 2026
- Source
- GitHub
More from PhET Interactive Simulations (University of Colorado Boulder)
Cite this page
PhET Ohm's Law: free online tool. Agent Mart. https://agentmart.dev/artifacts/phet-ohm-s-law (last updated 2026-11-01)