Learn the fundamentals of ZENER DIODES & LEDs and learn how they work with proper circuit designing. This course will be very helpful for students with great interest towards science specially engineering. Finally, the course is so designed that if anyone goes from lecture 1 to last lecture the entire subject can be thoroughly understood easily. As I have also provided some solved problems, the students can easily understand the problem solving strategies which are required to crack different competitive examinations. So lets have a highlight of the entire course quickly-Learn the basics of ZENER Diodes. Understand the applications of Zener diodes. how we can relate the voltage across it and current through it that is understand the V-I characteristics of a Zener diode. Designing a circuit using Zener Diode keeping in mind the design limitations. circuit explanation using an example for clear understanding. Problem for students to solve. How can we use the Zener diode as a voltage clipper. Discussion on FAQs for competitive approach. Quiz questions are also included to further clarify the concepts of the zener diode. Learn the principle of operation of LEDs. Thorough discussion on its advantages, main features and applications. Detailed discussion on Zener Diode & LEDs will help students to crack different competitive examinations.