What this set is
This is an original Doubtly set of 20 most important questions for the Mumbai University FE Semester 1 Basic Electrical and Electronics Engineering (ESC102, NEP 2020 scheme, introduced in 2024-25) exam in Winter 2026. It is not an official university paper and does not predict the actual paper. Questions are grouped by module. Each one has a full model answer with steps, units and checks, and carries the marks (3, 4, 5, 6 or 10) that the same type of question carries in recent MU papers.
How the questions were chosen
We went through the last three BEE papers (December 2024, June 2025 KT and December 2025) and listed the question type behind every sub-question. Almost every type came again in the next paper, often with the same marks, for example the 10-mark network theorem and the 10-mark single-phase AC numerical in Q.2 and Q.3. For each repeated type we wrote fresh questions with new values. Per module, at most one question is taken as-is from those papers, and its stem says which paper it came from.
| Module and question type | Dec 2024 | June 2025 KT | Dec 2025 |
|---|---|---|---|
| DC: 10-mark network theorem (Superposition / Thevenin / Norton) | Superposition | Norton | Thevenin, Norton |
| DC: Nodal analysis | Yes | Yes | Yes |
| DC: Star–delta transformation | Yes | Yes | No |
| DC: Maximum power transfer | Yes | No | Yes |
| AC: 10-mark series circuit numerical | Yes | Yes | Yes |
| AC: Three-phase star load numerical | Yes | Yes | Yes |
| AC: Resonance (condition, definitions, comparison) | Yes | Yes | Yes |
| AC: Parallel branches (admittance, branch currents) | Yes | No | Yes |
| Transformer: working principle, EMF equation / ratio | Yes | Yes | Yes |
| Transformer: losses / efficiency / ideal vs practical | Yes | Yes | Yes |
| Machines: three-phase induction motor principle | Yes | Yes | No |
| Machines: BLDC motor | Yes | Yes | Yes |
| Machines: DC motor parts / back EMF | Yes | Yes | Yes |
| Diodes: Zener characteristics and regulator | Yes | Yes | Yes |
| Diodes: LED working / applications | Yes | Yes | Yes |
| Transistors: BJT as amplifier / switch / CE characteristics | Yes | Yes | Yes |
| Transistors: BJT vs FET, FET note | Yes | Yes | Yes |
A few smaller topics also appeared once or twice and are worth a quick revision from notes: source transformation, the single-phase induction motor (short note and comparison with three-phase), and delta-connection relations for three-phase loads.
How to use this set
Solve each numerical on paper first, at the exam pace of about 2 minutes per mark (the real paper is 60 marks in 2 hours), then check your working against the solution. For circuit questions, redraw the circuit from the description, mark node voltages or loop currents, and always write the final answer with its unit and direction. For theory questions, the model answers show the points and labelled diagram that examiners look for. All numerical results were rechecked by calculation.
FAQs
Will these exact questions come in the Winter 2026 exam?
No one can promise that. These are the question types that repeated most in the last three papers, so they are the best place to start, but cover the whole syllabus.
What is the BEE paper pattern?
The recent papers are 60 marks in 2 hours. Q.1 is compulsory with five 3-mark short questions spread across the modules. Q.2 to Q.6 carry 15 marks each (for example a 10-mark numerical plus a 5-mark theory question), and you answer any three of them.
Why are some questions marked "asked in MU"?
For each module, one question that the university has already set is included word for word so you can see the exact exam wording. All the others are new questions of the same type.
