Support for Java Applets, including Physlets, has been discontinued by browsers and Oracle. Thus, traditional Java-based Physlets are no longer supported on this website. Please note Open Source Physics (OSP) Java programs continue to run on computers with Java if users download the jar file.

The OSP team is busy updating and developing simulations using HTML5 + JavaScript.
These simulations run on almost all platforms including tablets and cellphones. Explore the Third Edition of Physlets Physics or search OSP for JavaScript to find these simulations.

Chapter 30: DC Circuits

Direct current (DC) circuits are those circuits where the current does not vary in time (aside from when a switch opens or closes). They are characterized by batteries, bulbs, resistors, switches and, occasionally, circuits with capacitors. Using V = IR (Ohm's law) and conservation of energy and charge, you should be able to understand circuits made up of these components, figure out what a given circuit does, and design some simple circuits. Understanding DC circuits provides a beginning for understanding the electronic appliances and equipment around us.

Table of Contents

Illustrations

Explorations

Problems

Circuits TOC

Overview TOC

The OSP Network:
Open Source Physics - Tracker - EJS Modeling
Physlet Physics
Physlet Quantum Physics