Are these Basic Electrical Engineering handwritten notes free?

Yes. Fill in the short form on this page and the PDF downloads right away. There is no fee for the notes.

Are these official university notes?

No. These are original Uncodemy revision notes for Basic Electrical Engineering. They are not issued or approved by AKTU or any other university, and they are not past papers.

Which syllabus do they follow?

They follow the common B.Tech syllabus for Basic Electrical Engineering used by most Indian universities, including AKTU and colleges on the AICTE model curriculum. Unit order and depth differ, so match the notes with your own university syllabus.

Are these notes for all branches?

Yes. Basic Electrical Engineering is a common first-year subject, and these notes are written for students from every branch, not only electrical.

Is there a page with practice questions?

Yes. Uncodemy has a separate Basic Electrical Engineering important questions PDF with unit-wise practice questions.

Basic Electrical Engineering Handwritten Notes PDF

Key takeaways

Nine units covering the full first-year BEE syllabus in most universities.
Thevenin and maximum power transfer are solved with a simple 12 V example.
Series RLC, power factor and three-phase star loads are worked through step by step.
Transformer EMF, DC machines, induction motor slip, earthing, fuses, MCBs and batteries are included.
Original Uncodemy revision notes, not official university notes. Check your own syllabus.

About these handwritten notes

These Basic Electrical Engineering notes are original Uncodemy revision notes, written in a clean handwritten style so they are quick to read before an exam. They follow the common B.Tech syllabus for Basic Electrical Engineering (B.Tech first year in all branches, and diploma students). They are not official university notes and not copied from any textbook or past paper.

Topic order, unit numbers and depth vary between universities, so first place each unit below against your own university syllabus. If your syllabus has a topic that is missing here, add it in the margin from your class notes or textbook. Use these notes for revision after you have studied the topic once in class, not as your only study material. They are short on purpose: the aim is to help you recall the main ideas, formulas and diagrams quickly, so that your exam time goes into writing good answers.

What's inside the Basic Electrical Engineering notes

The notes are written for first-year students from every branch, so each topic starts from the basics. Every unit has a formula box, a solved numerical and an exam tip.

Unit 1: DC Circuit Basics. Active and passive elements, series and parallel circuits, Kirchhoff's laws and star-delta conversion.
Unit 2: Network Theorems. Superposition, Thevenin, Norton and maximum power transfer.
Unit 3: AC Fundamentals. Sinusoidal waves, RMS and average values, form factor, peak factor and phasors.
Unit 4: Single-Phase AC Circuits. R, L and C in AC, impedance, power and power factor, and series RLC resonance.
Unit 5: Three-Phase Circuits. Star and delta connections, line and phase relations, three-phase power and the two-wattmeter method.
Unit 6: Magnetic Circuits. MMF, reluctance, electric vs magnetic circuits, and hysteresis and eddy current losses.
Unit 7: Single-Phase Transformer. Construction, working, EMF equation, losses, efficiency and the condition for maximum efficiency.
Unit 8: Electrical Machines (introduction). DC machine basics and the three-phase induction motor with synchronous speed and slip.
Unit 9: Electrical Installation and Safety. Wiring, earthing, fuses, MCBs, ELCBs and battery basics.

The last page of the PDF lists the most asked practice questions for the whole subject, so you can test yourself after finishing all the units.

Formulas and solved examples in the PDF

Formula boxes cover RMS values, impedance, power and power factor, line and phase relations, three-phase power, the transformer EMF equation and slip. Solved examples include a Thevenin and maximum power circuit, a series RLC circuit with 30 Ω, 60 Ω and 20 Ω, a balanced 400 V star load, a transformer EMF and the slip of a 4-pole motor at 1440 rpm.

How to revise Basic Electrical Engineering with handwritten notes

Handwritten-style notes work best when you read actively. Keep a pen and a rough notebook beside you, cover the formula or diagram, and try to write it yourself before you look.

Solve one numerical for each theorem. First-year papers repeat the same pattern with different values.
Draw the phasor diagram for every RLC numerical. It helps you check whether the power factor is leading or lagging.
Write the star and delta relations side by side on one card: VL, Vph, IL and Iph.
Keep the transformer EMF equation and the maximum efficiency condition on the same page as one solved example.

In the last week, read only the formula boxes and exam tips, and solve one numerical or long question per unit from memory. If you study with friends, ask each other to explain one diagram or derivation aloud. Explaining a topic is the fastest way to find the gaps in it.

A short revision plan

If your exam is about a week away, this plan covers every unit in the PDF once and leaves time for practice. Stretch it over two weeks if you are starting from scratch.

Day 1: DC Circuit Basics, Network Theorems.
Day 2: AC Fundamentals, Single-Phase AC Circuits.
Day 3: Three-Phase Circuits, Magnetic Circuits.
Day 4: Single-Phase Transformer, Electrical Machines (introduction).
Day 5: Electrical Installation and Safety.
Day 6: Solve the practice questions in the exam focus section below, one per unit, without the notes.
Day 7: Read only the formula boxes and exam tips, redo the numericals you got wrong, and sleep early.

Common mistakes to avoid

Using peak values in power formulas. P = VI cos φ uses RMS values.
Mixing up line and phase values in star and delta. In star, line voltage is √3 times phase voltage; in delta, line current is √3 times phase current.
Forgetting to say leading or lagging when you give a power factor.
Using a reading from the wrong wattmeter as W1 in the two-wattmeter power factor formula.

How Basic Electrical Engineering links to other subjects

Basic Electrical Engineering is a first-year foundation. For EE and ECE students it leads into Network Analysis, Electrical Machines, Electrical Measurements and Power Systems, which take each unit much deeper.

Exam focus: high-weightage topics

First-year papers usually give the most weight to network theorems, series RLC circuits and resonance, three-phase relations and power, and the transformer EMF equation and efficiency. Earthing, fuses and MCBs are common short questions.

Typical long and numerical questions to practise:

State and prove Thevenin's and Norton's theorems with an example.
Derive the RMS and average value of a sine wave, and define form factor and peak factor.
Solve a series RLC circuit: find Z, I, power factor, P and Q, and draw the phasor diagram.
Derive the relation between line and phase quantities in star and delta.
Explain the two-wattmeter method and find the power factor from the readings.
Derive the EMF equation of a transformer and state when its efficiency is maximum.

When you write a long answer, start with a one-line definition, draw the diagram or circuit, write the derivation in clear steps and end with the final result and its unit. For numericals, write the formula first, then substitute, so you can still earn step marks if the arithmetic slips.

These are practice questions based on common syllabus topics. They are not verified past papers, and we do not claim any question will appear in your exam. For real previous papers, use your university's official archive.

Who these notes are for

These notes are for B.Tech first-year students of all branches preparing for their Basic Electrical Engineering exam, and for diploma students with a similar syllabus. They also help EE and ECE students who want a quick refresher of circuit basics before Network Analysis or Electrical Machines. Students from non-electrical branches can use them as a short, clear summary for the one electrical paper they need to clear.

Download Basic Electrical Engineering Handwritten Notes PDF