AKTU Fundamentals of Electrical Engineering · Important Questions 2026Source: ryzenstudy.com PYQs
BEE101 Fundamentals of Electrical Engineering Important Questions 2026 (AKTU)
Repeat analysis + most-asked questions, unit-wise
What we did: built from all 7 AKTU Fundamentals of Electrical Engineering papers (2021-22 (Sem 1)–2025-26): 156 questions grouped into 96 distinct questions, 32 of which were asked in more than one paper.
- of marks were repeat questions
- 51%
- of marks were repeat questions
- questions asked in 2+ papers
- 32
- questions asked in 2+ papers
- papers analysed (2021-22 (Sem 1)–2025-26)
- 7
- papers analysed (2021-22 (Sem 1)–2025-26)
- units, mapped to current syllabus
- 5
- units, mapped to current syllabus
How much of the paper repeats?
- Repeats are real: when we checked each newer BEE101 paper against the papers before it, on average 51% of its marks were questions already asked in an earlier paper.
- 2023-24 (Sem 1) paper: 31% of marks were repeats (3 of 6 repeated questions were in our top list).
- 2023-24 (Sem 2) paper: 52% of marks were repeats (8 of 11 repeated questions were in our top list).
- 2024-25 (Sem 1) paper: 43% of marks were repeats (5 of 9 repeated questions were in our top list).
- 2024-25 (Sem 2) paper: 79% of marks were repeats (9 of 18 repeated questions were in our top list).
- 2025-26 paper: 48% of marks were repeats (1 of 7 repeated questions were in our top list).
- Topic weightage is a guide, not a guarantee: our Tier 1 + Tier 2 topics covered 65% of the next paper's marks — picking the same number of topics at random would have covered about 50%.
Across 10 subjects and 23 papers we tested, 43% of marks repeated earlier questions on average.
1.Unit-wise most-asked questions
Ranked by how many papers asked them, then by how recently. Click a paper to open it.
Unit 1: DC Circuits
19% of past marks| Question | Asked |
|---|---|
| Determine the current in the 2 Ω resistor of the circuit by Mesh Analysis as shown in figure. | Asked 5× |
| Using nodal analysis find the branch currents in the circuit | Asked 4× |
| State the Kirchhoff’s Current Law (KCL) and Kirchhoff’s Voltage Law (KVL). | Asked 3× |
| Define bilateral and unilateral element | Asked 3× |
Unit 2: : Steady State Analysis of Single Phase AC Circuits
27% of past marks| Question | Asked |
|---|---|
| What is the average power in a pure capacitive circuit? | Asked 3× |
| A resistance of 75 Ω, an inductance of 0.35 H and a capacitance of 150 μF are connected in series across a 230 V, 50 Hz supply. Calculate (i) the (see original paper) | Asked 2× |
| Derive the relation between phase voltage & line voltage for star connected three phase supply system. A 3 phase, 400-volt supply is connected to a 3 phase star connected balanced load. The line current is 20 amps and the power consumed by the load is 12 KW. Calculate the phase impedance of the load, phase current and power factor. | Asked 2× |
| Define the expression for form factor and peak factor. | Asked 2× |
Unit 3: Transformers
17% of past marks| Question | Asked |
|---|---|
| Explain the working principle of transformer and derive the EMF equation | Asked 4× |
| Draw the phasor diagram of a practical two-winding transformer in no-load condition | Asked 4× |
| A 20kVA, 2000V/200V, single-phase, 50 Hz transformer has a primary resistance of 1.5 Ω and reactance of 2 Ω. The secondary resistance and reactance are 0.015 Ω and 0.02 Ω respectively. The no load current of transformer is 1A at 0.2 power factor. Determine: (i) Equivalent resistance, reactance and impedance referred to primary (ii) Supply current (iii) Total copper loss Draw approximate equivalent circuit | Asked 3× |
| Describe different types of transformer losses and methods to minimize it | Asked 2× |
Unit 4: Electrical machines
21% of past marks| Question | Asked |
|---|---|
| (i) Why Single Phase Induction Motor is not Self Starting? (ii) What is Synchronous Machine? Also discuss the basic principle of synchronous machine. | Asked 3× |
| Derive the torque equation for DC machines | Asked 3× |
| Draw and explain the torque-slip characteristics of a 3-Φ induction motor indicating the starting torque, the maximum torque and operating region | Asked 3× |
| A 3-phase 440 V, 50 Hz induction motor has a 4% slip. What will be the frequency of the rotor current? | Asked 3× |
Unit 5: Electrical Installations
16% of past marks| Question | Asked |
|---|---|
| Describe the importance of earthing in ensuring electrical safety and protecting equipment. | Asked 3× |
| Discuss briefly the types of batteries and explain anyone with diagram | Asked 2× |
| Describe the working principle of an MCB along with the necessary circuit diagrams? | Asked 2× |
| Explain briefly the SFU | Asked 2× |
2.Topic weightage: which topics carry the marks
Blue = Tier 1 + Tier 2 (topics that carried ~80% of past marks). Grey = the rest. It shows where marks have gone, not a promise of what comes next.
Series and Parallel Resonance · U2
7.1% (cum 7%)
Three Phase Induction Motor · U4
7.1% (cum 14%)
Mesh Analysis Method · U1
6.5% (cum 21%)
Star and Delta Connections · U2
6% (cum 27%)
Nodal Analysis Method · U1
5.5% (cum 32%)
Fundamentals of Earthing · U5
4.1% (cum 36%)
Transformer Efficiency · U3
4.1% (cum 40%)
Active and Reactive Power · U2
3.9% (cum 44%)
Ideal Transformer · U3
3.8% (cum 48%)
Equivalent Circuit of Transformer · U3
3.7% (cum 52%)
EMF Equation of Generator · U4
3.1% (cum 55%)
R-L-C Series Circuits · U2
2.9% (cum 58%)
Torque Equation of Motor · U4
2.8% (cum 61%)
Bandwidth and Quality Factor · U2
2.8% (cum 63%)
Single Phase Induction Motor · U4
2.7% (cum 66%)
Types of Cables · U5
2.3% (cum 68%)
Types of Batteries · U5
2.3% (cum 71%)
Voltage and Current Sources · U1
2.1% (cum 73%)
Slip-Torque Characteristics · U4
2.1% (cum 75%)
Practical Transformer · U3
2.1% (cum 77%)
Kirchhoff's Laws · U1
1.8% (cum 79%)
Form and Peak Factors · U2
1.8% (cum 81%)
Switch Fuse Unit (SFU) · U5
1.7% (cum 82%)
Types of Wires · U5
1.6% (cum 84%)
Alternator and Synchronous Motor · U4
1.5% (cum 85%)
ELCB and ACB · U5
1.5% (cum 87%)
Average and Effective Values · U2
1.5% (cum 88%)
MCB and MCCB · U5
1.4% (cum 90%)
Voltage Regulation · U3
1.3% (cum 91%)
Unilateral and Bilateral Elements · U1
1.2% (cum 92%)
Losses in Transformers · U3
1.1% (cum 93%)
Circuit Elements R, L, C · U1
1.1% (cum 94%)
Applications of DC Motors · U4
0.9% (cum 95%)
Magnetic Circuits · U3
0.8% (cum 96%)
Bus-Bars · U5
0.7% (cum 97%)
R-L-C Parallel Circuits · U2
0.7% (cum 98%)
Lightning Protection · U5
0.7% (cum 98%)
DC Machine Construction · U4
0.4% (cum 99%)
Concept of Linearity · U1
0.4% (cum 99%)
Sinusoidal Waveform Representation · U2
0.4% (cum 99%)
Active and Passive Elements · U1
0.4% (cum 100%)
| Topic | Papers | Share |
|---|---|---|
| Series and Parallel Resonance · Unit 2 · Tier 1 | 7/7 | 7.1% |
| Three Phase Induction Motor · Unit 4 · Tier 1 | 7/7 | 7.1% |
| Mesh Analysis Method · Unit 1 · Tier 1 | 6/7 | 6.5% |
| Star and Delta Connections · Unit 2 · Tier 1 | 6/7 | 6% |
| Nodal Analysis Method · Unit 1 · Tier 1 | 5/7 | 5.5% |
| Fundamentals of Earthing · Unit 5 · Tier 1 | 4/7 | 4.1% |
| Transformer Efficiency · Unit 3 · Tier 1 | 5/7 | 4.1% |
| Active and Reactive Power · Unit 2 · Tier 1 | 5/7 | 3.9% |
| Ideal Transformer · Unit 3 · Tier 1 | 5/7 | 3.8% |
| Equivalent Circuit of Transformer · Unit 3 · Tier 1 | 3/7 | 3.7% |
| EMF Equation of Generator · Unit 4 · Tier 2 | 4/7 | 3.1% |
| R-L-C Series Circuits · Unit 2 · Tier 2 | 2/7 | 2.9% |
| Torque Equation of Motor · Unit 4 · Tier 2 | 3/7 | 2.8% |
| Bandwidth and Quality Factor · Unit 2 · Tier 2 | 4/7 | 2.8% |
| Single Phase Induction Motor · Unit 4 · Tier 2 | 3/7 | 2.7% |
| Types of Cables · Unit 5 · Tier 2 | 3/7 | 2.3% |
| Types of Batteries · Unit 5 · Tier 2 | 3/7 | 2.3% |
| Voltage and Current Sources · Unit 1 · Tier 2 | 5/7 | 2.1% |
| Slip-Torque Characteristics · Unit 4 · Tier 2 | 3/7 | 2.1% |
| Practical Transformer · Unit 3 · Tier 2 | 4/7 | 2.1% |
| Kirchhoff's Laws · Unit 1 · Tier 2 | 4/7 | 1.8% |
| Form and Peak Factors · Unit 2 · Tier 2 | 3/7 | 1.8% |
| Switch Fuse Unit (SFU) · Unit 5 · Tier 3 | 3/7 | 1.7% |
| Types of Wires · Unit 5 · Tier 3 | 2/7 | 1.6% |
| Alternator and Synchronous Motor · Unit 4 · Tier 3 | 3/7 | 1.5% |
| ELCB and ACB · Unit 5 · Tier 3 | 2/7 | 1.5% |
| Average and Effective Values · Unit 2 · Tier 3 | 2/7 | 1.5% |
| MCB and MCCB · Unit 5 · Tier 3 | 2/7 | 1.4% |
| Voltage Regulation · Unit 3 · Tier 3 | 2/7 | 1.3% |
| Unilateral and Bilateral Elements · Unit 1 · Tier 3 | 3/7 | 1.2% |
| Losses in Transformers · Unit 3 · Tier 3 | 2/7 | 1.1% |
| Circuit Elements R, L, C · Unit 1 · Tier 3 | 2/7 | 1.1% |
| Applications of DC Motors · Unit 4 · Tier 3 | 1/7 | 0.9% |
| Magnetic Circuits · Unit 3 · Tier 3 | 1/7 | 0.8% |
| Bus-Bars · Unit 5 · Tier 3 | 1/7 | 0.7% |
| R-L-C Parallel Circuits · Unit 2 · Tier 3 | 1/7 | 0.7% |
| Lightning Protection · Unit 5 · Tier 3 | 1/7 | 0.7% |
| DC Machine Construction · Unit 4 · Tier 3 | 1/7 | 0.4% |
| Concept of Linearity · Unit 1 · Tier 3 | 1/7 | 0.4% |
| Sinusoidal Waveform Representation · Unit 2 · Tier 3 | 1/7 | 0.4% |
| Active and Passive Elements · Unit 1 · Tier 3 | 1/7 | 0.4% |
3.Paper pattern (2025-26)
| Section | Questions | Rule |
|---|---|---|
| A | 7 × 2 marks | Attempt all |
| B | 3 × 7 marks | Attempt any 3 |
| C | 7 × 7 marks | Attempt any 1 |
4.In the syllabus, never asked yet
Low priority, but read them once — a new paper can always start here.
- Power Factor · U2
- Types of DC Machines · U4
- Methods of Starting Induction Motor · U4
5.Study order
- 1Series and Parallel Resonance (Unit 2, Tier 1)
- 2Three Phase Induction Motor (Unit 4, Tier 1)
- 3Mesh Analysis Method (Unit 1, Tier 1)
- 4Star and Delta Connections (Unit 2, Tier 1)
- 5Nodal Analysis Method (Unit 1, Tier 1)
- 6Fundamentals of Earthing (Unit 5, Tier 1)
- 7Transformer Efficiency (Unit 3, Tier 1)
- 8Active and Reactive Power (Unit 2, Tier 1)
- 9Ideal Transformer (Unit 3, Tier 1)
- 10Equivalent Circuit of Transformer (Unit 3, Tier 1)
- 11EMF Equation of Generator (Unit 4, Tier 2)
- 12R-L-C Series Circuits (Unit 2, Tier 2)
- 13Torque Equation of Motor (Unit 4, Tier 2)
- 14Bandwidth and Quality Factor (Unit 2, Tier 2)
- 15Single Phase Induction Motor (Unit 4, Tier 2)
- 16Types of Cables (Unit 5, Tier 2)
- 17Types of Batteries (Unit 5, Tier 2)
- 18Voltage and Current Sources (Unit 1, Tier 2)
- 19Slip-Torque Characteristics (Unit 4, Tier 2)
- 20Practical Transformer (Unit 3, Tier 2)
- 21Kirchhoff's Laws (Unit 1, Tier 2)
- 22Form and Peak Factors (Unit 2, Tier 2)
FAQ
Which units of BEE101 carry the most marks?
Unit 2 (: Steady State Analysis of Single Phase AC Circuits, 27% of past marks) and Unit 4 (Electrical machines, 21% of past marks).
Do AKTU Fundamentals of Electrical Engineering questions repeat?
Yes. On average 51% of the marks in each newer BEE101 paper came from questions already asked in an earlier paper, and 32 questions have appeared in more than one paper.
How is this list made?
Every question from the 7 papers (2021-22 (Sem 1)–2025-26) was mapped to the current AKTU syllabus and grouped with the same question from other years. Questions are ranked by how many papers they appeared in, then by how recently.
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Note: this is based on past AKTU papers, not a guarantee. Questions are mapped to the current syllabus; topics that are no longer in the syllabus are left out.