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🇮🇳 UPSC ESE Electrical Engineering · subject
UPSC ESE Electrical Engineering Electrical Engineering Syllabus
Every chapter and topic of Electrical Engineering examined in UPSC ESE Electrical Engineering — 8 chapters, 57 topics, plus 55 flashcards written against it.
Electrical Engineering syllabus — full chapter and topic list
Expand any chapter to see its topics and sub-topics. This is the whole examinable outline for Electrical Engineering in UPSC ESE Electrical Engineering, not a summary of it.
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Electric Circuits and Fields
10 topics- Network graph
- KCL, KVL
- Node and Mesh analysis
- Transient response
- Sinusoidal steady-state analysis
- Resonance
- Coupled circuits
- Two-port networks
- Three-phase circuits
- Electrostatic and electromagnetic fields
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Electrical Machines
7 topics- Transformers
- DC machines
- Induction machines
- Synchronous machines
- Fractional kW machines
- Permanent magnet machines
- Stepper motors
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Power Systems
10 topics- Power generation concepts
- Transmission line parameters
- Performance of transmission lines
- Power flow analysis
- Voltage control
- Power factor correction
- Protection and switchgear
- Circuit breakers
- Relays
- Power system stability
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Control Systems
6 topics- Mathematical modeling of control systems
- Control system components
- Time domain analysis
- Frequency domain analysis
- Stability analysis
- Compensation techniques
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Electrical and Electronic Measurements
6 topics- Measurement of voltage, current, power, energy
- Instrument transformers
- Measurement of resistance, inductance, capacitance
- Digital voltmeters and multimeters
- Oscilloscopes
- Potentiometers
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Analog and Digital Electronics
5 topics- Operational amplifiers
- Analog circuits
- Digital circuits
- Microprocessors and microcontrollers
- A/D and D/A converters
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Power Electronics and Drives
7 topics- Power semiconductor devices
- Phase-controlled rectifiers
- Choppers
- Inverters
- AC voltage controllers
- DC drives
- AC drives
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Renewable Energy Sources and Emerging Technologies
6 topics- Solar power
- Wind energy
- Biomass energy
- Fuel cells
- Smart grid
- Microgrid
Electrical Engineering flashcards for UPSC ESE Electrical Engineering
19 of 55 cards from the Electrical Engineering deck — real questions with worked answers.
In a network graph, what is a 'tree' and how many branches does it contain for a graph with $n$ nodes?
A tree is a connected subgraph containing all nodes but no closed loops. It contains $n-1$ branches (twigs).
For a connected graph with $b$ branches and $n$ nodes, how many links (co-tree branches) are there?
The number of links is $l = b - n + 1$. These links form the co-tree and equal the number of independent loops.
State Kirchhoff's Current Law (KCL).
The algebraic sum of all currents entering and leaving a node is zero: $\sum_{k} i_{k} = 0$. It is based on conservation of charge.
State Kirchhoff's Voltage Law (KVL).
The algebraic sum of all voltages around any closed loop is zero: $\sum_{k} v_{k} = 0$. It is based on conservation of energy.
How many independent KCL (node) equations and KVL (loop) equations does a graph with $n$ nodes and $b$ branches yield?
Independent node equations: $n-1$. Independent loop equations: $b - n + 1$.
In nodal analysis, what is the standard matrix form of the equations?
$[Y][V] = [I]$, where $[Y]$ is the node admittance matrix, $[V]$ the node voltage vector, and $[I]$ the source current vector.
In mesh analysis, what is the standard matrix form of the equations?
$[Z][I] = [V]$, where $[Z]$ is the mesh impedance matrix, $[I]$ the mesh current vector, and $[V]$ the source voltage vector.
What is a supernode in nodal analysis?
A supernode is formed when a voltage source (with no series resistor) connects two non-reference nodes; KCL is applied around the enclosing surface, combining the two nodes' equations.
Write the voltage across an inductor and current through a capacitor in terms of derivatives.
Inductor: $v_{L} = L\frac{di}{dt}$. Capacitor: $i_{C} = C\frac{dv}{dt}$.
What is the time constant of a series RL circuit and of a series RC circuit?
RL: $\tau = \frac{L}{R}$. RC: $\tau = RC$. After $5\tau$ the transient is considered complete.
Write the transient current expression when a DC voltage $V$ is suddenly applied to a series RL circuit (zero initial current).
$i(t) = \frac{V}{R}\left(1 - e^{-t/\tau}\right)$ with $\tau = \frac{L}{R}$.
Write the capacitor voltage when a DC source $V$ charges a series RC circuit from zero initial voltage.
$v_{C}(t) = V\left(1 - e^{-t/RC}\right)$, and current $i(t) = \frac{V}{R}e^{-t/RC}$.
For a second-order RLC circuit, define the damping ratio condition for overdamped, critically damped and underdamped responses.
Overdamped: $\zeta > 1$; critically damped: $\zeta = 1$; underdamped: $\zeta < 1$ (oscillatory). Damped natural frequency $\omega_{d} = \omega_{n}\sqrt{1-\zeta^{2}}$.
What is the impedance of an inductor and a capacitor in sinusoidal steady state at angular frequency $\omega$?
Inductor: $Z_{L} = j\omega L$. Capacitor: $Z_{C} = \frac{1}{j\omega C} = -\frac{j}{\omega C}$.
Define average (real) power, reactive power and apparent power in an AC circuit.
Real: $P = VI\cos\phi$ (W). Reactive: $Q = VI\sin\phi$ (VAR). Apparent: $S = VI$ (VA), with $S = \sqrt{P^{2}+Q^{2}}$.
What is power factor and how is it expressed?
Power factor is $\cos\phi = \frac{P}{S}$, the cosine of the angle between voltage and current. It is lagging for inductive and leading for capacitive loads.
Relate RMS value to peak value for a sinusoid, and define form factor and crest factor.
$V_{rms} = \frac{V_{m}}{\sqrt{2}}$. Form factor $= \frac{V_{rms}}{V_{avg}} \approx 1.11$; crest factor $= \frac{V_{m}}{V_{rms}} = \sqrt{2}$.
What is the resonant frequency of a series RLC circuit?
$f_{0} = \frac{1}{2\pi\sqrt{LC}}$ (or $\omega_{0} = \frac{1}{\sqrt{LC}}$). At resonance $X_{L} = X_{C}$ and impedance is purely resistive (minimum).
Define quality factor $Q$ of a series RLC circuit and relate it to bandwidth.
$Q = \frac{\omega_{0}L}{R} = \frac{1}{\omega_{0}RC} = \frac{f_{0}}{BW}$. Thus bandwidth $BW = \frac{f_{0}}{Q} = \frac{R}{2\pi L}$.
Planning Electrical Engineering for UPSC ESE Electrical Engineering
Electrical Engineering is about 67% of the UPSC ESE Electrical Engineering syllabus by topic count — 57 of 85 topics, spread over 8 chapters. At roughly 45 minutes per topic plus 12 minutes per sub-topic, a first pass runs to about 45 hours.
The heaviest chapters are Electric Circuits and Fields (10 topics), Power Systems (10 topics), Electrical Machines (7 topics) . Front-load those while your energy is high; the short chapters are better revision filler later.
Work top-down: read the chapter, then tick topics off individually rather than marking the whole chapter done. Sub-topics are where silent gaps hide.
Electrical Engineering (UPSC ESE Electrical Engineering) FAQ
What is in the UPSC ESE Electrical Engineering Electrical Engineering syllabus?
Electrical Engineering is split into 8 chapters — Electric Circuits and Fields, Electrical Machines, Power Systems, Control Systems, Electrical and Electronic Measurements and Analog and Digital Electronics, and 2 more, containing 57 topics and 0 sub-topics in total.
How many chapters are there in Electrical Engineering for UPSC ESE Electrical Engineering?
8 chapters. Electrical Engineering accounts for about 67% of the topics in the whole UPSC ESE Electrical Engineering syllabus (57 of 85).
How long should I spend on Electrical Engineering for UPSC ESE Electrical Engineering?
Budget around 45 hours for a first pass through Electrical Engineering — about 45 minutes per topic plus 12 minutes per sub-topic across its 57 topics. Add revision cycles on top.
Are there flashcards for UPSC ESE Electrical Engineering Electrical Engineering?
Yes — a 55-card Electrical Engineering deck. Sample cards are printed on this page, and the full deck is free in the Examius app with spaced repetition scheduling.