Forward & Reverse Biased P-N Junction Diode | Characteristics, Knee Voltage & Breakdown | B.Sc Phy.

⚡ P-N Junction Diode: Forward Biasing & Reverse Biasing Explained (B.Sc Physics) ⚡ ​📖 In this comprehensive lecture, we thoroughly explore the operation, characteristics, and key parameters of a P-N Junction Diode under Forward Bias and Reverse Bias conditions. ​🎨 Every concept is illustrated with clear, hand-drawn circuit diagrams and characteristic curves to help you build solid conceptual clarity for your university examinations and competitive tests! 💡 ​🏛️ Curated according to the syllabus of Kolhan University (Semester 2 & Semester 3 - B.Sc Physics Honours), and equally beneficial for students across all Indian universities (CBCS/NEP), IIT JAM, CUET-PG, and related exams. 🇮🇳 ​📌 Topics Covered in This Lecture: ​🔹 Introduction to Biasing of a P-N Junction Diode 🔌 ​🔹 Forward Biased Operation: ​⚙️ Working mechanism & depletion layer behavior ​⚡ Forward Current (I_f) ​📉 Cut-in Voltage / Knee Voltage (V_k) ​🔋 Forward Voltage (V_f) ​🔹 Reverse Biased Operation: ​⚙️ Working mechanism & barrier potential changes ​💧 Reverse Saturation Current (I_s / I_0) ​💥 Breakdown Voltage (V_{br} - Zener & Avalanche mechanisms) ​🔋 Reverse Voltage (V_r) ​🔹 V-I Characteristics & Neat Circuit Diagrams: ​🔌 Forward & Reverse bias circuit connections ​📈 Complete V-I characteristic curve breakdown ​⏱️ Timestamps: 00:00 - 🎬 Introduction 02:33 - ⚡ Biasing of PN Junction Diode 05:03 - ⏩ Forward Biasing 06:00 - ⚙️ Operation of Forward Bias Diode 16:36 - 🔋 Current Flow in (F.B) Diode 17:24 - 📈 Cut-in / Knee Voltage 19:58 - 📊 V-I Characteristics of Diode (F.B) 21:38 - 🛑 Forward Resistance of Diode 22:09 - 📉 Voltage Drop Across the F.B Diode 23:07 - ⏪ Reverse Biasing of Diode 30:24 - 🔋 Current Flow in Reverse Biased Diode 33:15 - 📊 V-I Characteristics of PN Junction Diode (R.B) 33:43 - ⚙️ Operation of Reverse Biasing Diode 34:48 - 💥 Breakdown Voltage 36:20 - 🛑 Resistance of Reverse Biased Diode 37:05 - 📉 Voltage Across Reverse Biased Diode 37:22 - 🚀 Upcoming / Next Video ​🎯 Useful For: ​🎓 B.Sc Physics Honours (Semester 2 & Semester 3) ​🏫 Kolhan University & State/Central Universities (CBCS / NEP Syllabus) ​🏆 IIT JAM Physics, CUET-PG, CSIR NET (Physical Sciences), GATE ​📚 Class 12 Physics (Semiconductor Electronics) ​🔔 Don't forget to Like 👍, Share 📲, and Subscribe 🔴 to support more in-depth Physics lectures! 💬 Leave your doubts and questions in the comment box. #BScPhysics #SemiconductorElectronics #PNJunctionDiode #KolhanUniversity #ForwardBiasing #ReverseBiasing #PhysicsLecture