An Electronic Circuit is a closed structure that directs electric current to perform intended functions. It can be equipped with a range of electronic components such as capacitor, resistor, diode, transistor, inductor, coil, and transformer. These components connected to each other via conductive traces or wires. An interesting approach to learn Electronic Circuit is to find something you want to build, then collect the necessary parts and put them together. Or, you can use circuit simulator such as Tinkercad to assemble a virtual circuit for testing your idea.