- Ohm’s Law
See how the equation form of Ohm’s law relates to a simple circuit. Adjust the voltage and resistance, and see the current change according to Ohm’s law.
Sample Learning Goals
- Predict how current will change when resistance of the circuit is fixed and voltage is varied.
- Predict how current will change when voltage of the circuit is fixed and resistance is varied.
The new HTML5 sims can run on iPads and Chromebooks, as well as PC, Mac, and Linux systems.
iOS 12+ Safari
iPad compatible sims
Not officially supported. If you are using the HTML5 sims on Android, we recommend using the latest version of Google Chrome.
Latest version of Google Chrome
The HTML5 and Flash PhET sims are supported on all Chromebooks.
Chromebook compatible sims
Microsoft Edge and Internet Explorer 11, latest version of Firefox, latest version of Google Chrome.
macOS 10.9.5+, Safari 9+, latest version of Chrome.
Not officially supported. Please contact [email protected] with troubleshooting issues.