These are very important notes of 11th bifocal electronics for the preparation of basic concepts in electronics.
Students are advised to learn through these notes and clear up your concepts first. After that only start studying 12th standard syllabus. If you already have our 12th standard electronics notes, then its ok, but if not then you can purchase them on this link.
Once you download these notes, please note that the number of important definitions are given in chapter-1. Don’t skip them. They are very useful to build up your basic understanding.