Electronics Basics #02 | Diode Worked Examples: Forward/Reverse + Si+Ge Series

Instructor: Dr. Süleyman Burak ÇELİK

Three classic single-loop diode problems, solved step by step. Problems covered: • Problem 1 — Si forward bias (E = 8 V, R = 2.2 kΩ) → V_R = 7.3 V, I = 3.32 mA • Problem 1b — Same circuit, source flipped → diode OFF, V_D = 8 V, I = 0 • Problem 2 — Si + Ge in series (E = 12 V, R = 5.6 kΩ) → V_O = 11 V, I = 1.96 mA Three-step recipe that works on every single-loop diode problem you'll see: ① Decide forward/reverse for each diode. ② Replace ON diode with its drop · OFF diode with open circuit. ③ KVL around the loop, then Ohm's law on the resistor. Builds on the diode models from lesson #01. The next lesson moves to AC sources and rectifier circuits, where the diode flips between ON and OFF many times per second. 🌐 AcEdumy.com