Core - Basic Electronics - Prof T.S.Natarajan | EveryEng

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Core - Basic Electronics - Prof T.S.Natarajan

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2253 min

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Telecommunication

Electronics & Telecommunication

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Why enroll

Participants usually join this course to strengthen their fundamentals in electronics, which is crucial for subjects like analog electronics, digital electronics, embedded systems, VLSI, and IoT. Many learners use it as a supplement to college lectures, exam preparation resource, or revision material before interviews. Since the course is free and taught by an experienced faculty member, it attracts students who prefer concept-oriented explanations rather than shortcut-based learning. It is also helpful for beginners who feel weak in electronics and want to start from scratch in a structured manner.

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5+ yrs experience·India

Is this course for you?

You should take this if

You work in Telecommunication
You're a Electronics & Telecommunication / Instrumentation Engineering professional
You have 3+ years of hands-on experience in this field
You prefer self-paced learning you can revisit

You should skip if

You're new to this field with no prior experience
You need a different specialisation outside Electronics & Telecommunication
You need live interaction with an instructor

Course details

This YouTube playlist is a Basic Electronics course designed to build a strong conceptual foundation in electronics for beginners and engineering students. The course explains fundamental electronic principles starting from basic concepts and gradually moving toward commonly used electronic devices and circuits. The lectures are delivered in a classroom-style format, making the content suitable for academic learning as well as self-study. It is especially useful for students from electronics, electrical, instrumentation, and related branches who want clarity in core subjects and a solid base for advanced topics.

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Course suitable for

Key topics covered

Introduction to Electronics
Semiconductor fundamentals
Diodes and applications
Transistors and their working
Basic amplifier concepts
Fundamental electronic circuits
Introductory digital electronics concepts

Course content

The course is readily available, allowing learners to start and complete it at their own pace.

40 lectures37 hr 33 min

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Questions and Answers

Q: You're checking a power supply design and search for "calculate ripple factor for full wave rectifier with capacitor filter". A 230 V, 50 Hz source feeds a full-wave rectifier with a 2200 µF capacitor and a 1 kΩ load. Assume ideal diodes. What ripple factor do you expect?

A: 100 Hz is the boundary that trips people. For a full-wave rectifier, ripple frequency doubles, and r ≈ 1/(6√2 fRC). Plugging f = 100 Hz, R = 1 kΩ, C = 2200 µF lands close to 0.002. Using 50 Hz or mixing peak-to-peak with RMS pushes you an order off.

Q: A common lab complaint leads you to Google "op amp output stuck near negative rail single supply". An LM358 runs from 0–12 V. Input is a 10 mV sine centered at 0 V, but the output clips hard at about 0.1 V and never goes negative. What's the root cause?

A: 0 V is the threshold. LM358 input common-mode includes ground only when biased correctly, but it can't process signals below ground on a single supply. The other options explain distortion or amplitude loss, not a hard rail clamp at ~0.1 V.

Q: You're selecting a diode and search "zener diode voltage regulator selection for 12V output". Input varies from 15–20 V, load current up to 50 mA. Which Zener rating fits best assuming a simple shunt regulator?

A: 1 W is the dividing line. At 20 V input, the Zener current plus load current sets dissipation near the watt range. Underrating ignores the high-line case; oversizing masks a resistor error rather than fixing it.

Q: A student asks you after searching "isolation transformer safety what it does not protect against". On a test bench, a 1:1 isolation transformer feeds a device under test. Which hazard still remains?

A: Two hands is the threshold scenario. Isolation breaks reference to earth, but touching both secondary lines completes a circuit through the body. Overcurrent and EMI are mitigated differently and don't rely on earth reference.