Circuit Simulator Applet
This resource is an interactive circuit simulator applet that allows users to experiment with various pre-designed circuits. It provides a hands-on way to learn about electrical concepts by simulating circuit behavior directly in a web browser.
Overview
Added
March 18, 2026
Subject & domain
physics · dc-circuits
Grade range
Grade 9 (Freshman)–Grade 12 (Senior)
Page kind
Tool
Introduction
Electronic Circuit Simulator Overview
- Functionality: An interactive applet for simulating electronic circuits with real-time animations.
- Visual Indicators:
- Green: Positive voltage.
- Gray: Ground.
- Red: Negative voltage.
- Yellow dots: Current flow.
- User Controls:
- Switches: Click to toggle on/off.
- Component Info: Hover mouse over components to view descriptions and current states in the lower right corner.
- Editing: Right-click (or control-click on Mac) a component and select "Edit" to modify parameters.
- Resources:
- Circuits Menu: Access to a library of pre-built sample circuits.
- Versions: Available in a modern JavaScript version (ported by Iain Sharp) and the original Java version.
- Features: Supports subcircuits and includes an index of examples.
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