Lighting an LED
The Lighting an LED simulation helps students learn how an LED works in an electric circuit. Students can connect an LED to a battery, observe the flow of electric current or electrons, identify the anode and cathode terminals, and explore how voltage affects LED brightness. The simulation provides a visual representation of current flow, helping learners understand circuit polarity and basic electronics concepts through interactive experimentation.
Screenshots
Topics
- LED
- Battery
- Voltage
- Current Flow
- Electron Flow
- Circuit Polarity
Learning Goals
- Identify the anode (+) and cathode (-) of an LED.
- Understand how an LED lights in a complete circuit.
- Compare current flow and electron flow.
- Observe how voltage affects LED brightness.
- Learn the importance of correct LED polarity.
Inclusive Features
- Simple and easy-to-use controls
- Visual current flow animations
- Adjustable voltage slider
- Show/Hide labels option
- Interactive learning through experimentation
System Requirements
HTML5 simulations can run on iPads, Chromebooks, PC, Mac, and Linux systems.
See full HTML5 system requirements
Inclusive features are added to HTML5 sims only, and some features have platform limitations. See Accessible Sims for more details on system requirements and tested platforms.


