This java based circuit simulator is useful application for electronic student and hobbyist to learn electronic circuit You can simulate basic circuit like RLC circuit, Digital Logic Circuit, Opa-amp, MosFet, Passive Circuit, or combination analog digital circuit in animated schematic.
When the applet starts up you will see an animated schematic of a simple LRC circuit. The green color indicates positive voltage. The gray color indicates ground. A red color indicates negative voltage. The moving yellow dots indicate current.
To turn a switch on or off, just click on it. If you move the mouse over any component of the circuit, you will see a short description of that component and its current state in the lower right corner of the window. To modify a component, move the mouse over it, click the right mouse button (or control-click if you have a Mac) and select “Edit”. To run circuit simulator you need Java plugin.