VTU | 1st Sem | Module 1 | Zener Diode Voltage Regulator Numerical | 2025 Scheme | 1BESC104C | PYQ's

This video solves a numerical problem on Zener Diode Voltage Regulator
from Module 1 – Introduction to Electronics & Communication,
as per VTU 1st Semester syllabus (2025 Scheme).
The solution is explained step-by-step, following VTU exam-oriented problem-solving format.
📝 VTU Exam Question (2025 Scheme):
Q. A 5V Zener diode has a maximum rated power dissipation of 500 mW.
If the diode is to be used in a simple regulator circuit to supply a regulated 5V to a load having a resistance of 500 Ω, determine a suitable value of series resistor for operation in conjunction with a supply of 9V.
📘 Syllabus Covered (Module 1 – VTU 2025 Scheme):
Zener diode as voltage regulator
Maximum power dissipation of Zener diode
Calculation of Zener current
Load current calculation
Series resistor calculation
Numerical problem solving method
🎯 Exam Importance (VTU):
Frequently asked numerical problem
Important for CIE internal tests
High-probability question for SEE
Tests understanding of Zener regulator design
📂 Handwritten Notes (FREE):
📌 Our handwritten notes used in this video will be uploaded on our Telegram channel:
👉 https://t.me/vtu4all

(Join the channel for VTU exam notes, numericals & revision material)
📌 Course Details:
Subject: Introduction to Electronics & Communication
Module: 1
Course Code: BESCK104C / 204C
Semester: 1st Semester
Scheme: VTU 2025 Scheme
University: Visvesvaraya Technological University (VTU)
👉 Watch the full video to understand how to solve Zener regulator numericals clearly and score full marks in VTU exams.
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