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Circuit Theory

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1296 min

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English

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Electronics & Instrumentation

Electrical Engineering

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Why enroll

Participants should join this course to build a strong foundation in circuit theory with simple explanations. It helps beginners understand complex topics easily and prepares them for advanced electrical and electronics courses.

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Engineering Academy

Engineer

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5+ yrs experience·India

Is this course for you?

You should take this if

You work in Electronics & Instrumentation
You're a Electrical Engineering / Electronics & Telecommunication professional
You have 3+ years of hands-on experience in this field
You want to build skills in Project Management, Research & Developmnet

You should skip if

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

Course details

This introductory Circuit Theory course explains the basic ideas of electrical circuits in a clear and simple way. It begins with an overview of signals and systems to help learners understand how electrical quantities behave over time. The course then defines what circuits and networks are, and how they are used in real-life electrical and electronic systems. You will learn the difference between circuit analysis and circuit synthesis in an easy, step-by-step manner. Important electrical elements such as resistors, capacitors, and inductors are discussed with practical examples. The professor explains fundamental laws like Ohm’s Law and Kirchhoff’s Laws to build a strong foundation. Various network theorems are introduced to simplify complex circuit problems. The course also covers how circuits respond to different inputs. Emphasis is placed on understanding concepts rather than memorizing formulas. By the end, learners will feel confident analyzing and understanding basic electrical networks.

Source: nptelhrd [Youtube Channel]

Course suitable for

Key topics covered

Review of Signals and Systems
Network Equations; Initial and Final Conditions
Problem Session 1
Step, Impulse, and Complete Responses
2nd Order Circuits: Magnetically Coupled Circuits
Transformer Transform Domain Analysis
Problem Session 2: Step and Impulse Responses
Network Theorems and Network Functions
Network Functions (Continued)
Amplitude and Phase of Network Functions
Problem Session 3: Network Theorems (Transform Domain)
Poles, Zeros, and Network Response
Single Tuned Circuits
Single Tuned Circuits (Continued)
Double Tuned Circuits
Double Tuned Circuits (Continued)
Problem Session 4: Network Functions and Analysis
Concept of Delay and Introduction
Two-Port Networks (Continued)
Problem Session 5
Minor – 1
Hybrid and Transmission Parameters of Two-Port Networks
Problem Session 6: Two-Port Networks

Course content

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

25 lectures21 hr 36 min

Review of Signals and Systems
42 min
Review of Signals and Systems.
50 min
Network Equations; Initial and Final Conditions
53 min
Problem Session1
54 min
Step, Impulse and Complete Responses
59 min
2nd Order Circuits:Magnetically Coupled Circuits
59 min
Transformer Transform Domain Analysis
55 min
Problem Session 2 : Step,Impulse
44 min
Network Theorams and Network Functions
55 min
Network Functions(Contd.)
51 min
Amplitude and Phase of Network Functions
49 min
Problem Session 3 : Network Theorems Transform
49 min
Poles, Zeros and Network Response
54 min
Single Tuned Circuits
55 min
Single Tuned Circuits (Contd.)
50 min
Double Tuned Circuits
44 min
Double Tuned Circuits (Contd.)
56 min
Problem Session 4 : Network Functions, Analysis
52 min
Double Tuned Circuits (Contd.).
53 min
Concept of Delay and Introduction
56 min
Two-port Networks (Contd.)
53 min
Problem Session 5
53 min
Minor - 1
45 min
The Hybrid & Transmission Parameters of 2 ports
47 min
Problem Session 6: Two - port networks
58 min

Opportunities that await you!

Skills & tools you'll gain

Project Management

Research & Developmnet

Engineering & Design

Career opportunities

Why people choose EveryEng

Industry-aligned courses, expert training, hands-on learning, recognized certifications, and job opportunities-all in a flexible and supportive environment.

FREE

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Questions and Answers

Q: You're sanity-checking a warranty return showing intermittent CAN dropouts. You type "estimate voltage drop on long automotive wiring harness CAN transceiver" into Google. The harness leg is 4 m one-way, 0.35 mm² copper, carrying a steady 60 mA load from a remote ECU. Order-of-magnitude, what voltage drop should you expect at 25°C?

A: A feels good if you stop at "CAN is low current" and forget the round-trip. 0.35 mm² copper is ~0.05 Ω/m. Eight meters round-trip gives ~0.4 Ω. At 60 mA, V = IR lands around 24 mV per meter pair, totaling just under 0.1 V. C jumps a decimal; you'd need amps, not tens of milliamps. D confuses duty cycle with DC drop — continuity doesn't amplify Ohm's law.

Q: During thermal chamber testing, supply voltage to a sensor ECU sags from 12 V to 9 V. You're searching "what happens to linear regulator dissipation when input voltage drops". The ECU uses a linear regulator feeding a fixed 5 V rail at constant load current. What actually happens to regulator power dissipation, and what's the right reaction?

A: A is the gut reaction — lower Vin feels stressful — but P = (Vin − Vout)·I. As Vin falls, dissipation falls. C forgets the pass element physics; output power isn't what heats the die. D assumes an ideal switch; linear regulators still burn power until true dropout, and that's where regulation fails. The right move is watching headroom, not heatsink temperature.

Q: You're on-site for an ECU loop check and Google "pre-commissioning ECU power and ground verification steps". Before flashing software, what sequence gives you the highest chance of catching a latent wiring fault?

A: B looks disciplined but measuring ground offset without load tells you very little. A risks bricking hardware before basics. D skips current limiting, a classic field mistake. C puts a leash on fault energy first, then checks the rail doing what it's supposed to, and only then worries about millivolt-level ground shifts.

Q: A field failure shows a shorted MOSFET on a high-side driver. You're searching "what does automotive fuse not protect against MOSFET failure". The circuit has a correctly sized blade fuse upstream. What hazard does that fuse NOT mitigate?

A: A, C, and D are exactly why the fuse exists — too much current for too long. B slips through because the MOSFET can cook itself at currents below fuse melt I²t, especially in linear mode. The fuse stays happy while silicon dies. That's how you get smoke with an intact fuse.