## GATE Syllabus for Electrical Engineering

### ENGINEERING MATHEMATICS

**Linear Algebra:** Matrix Algebra, Systems of linear equations, Eigen values and eigen vectors.

**Calculus:** Mean value theorems, Theorems of
integral calculus, Evaluation of definite and improper integrals,
Partial Derivatives, Maxima and minima, Multiple integrals, Fourier
series. Vector identities, Directional derivatives, Line, Surface and
Volume integrals, Stokes, Gauss and Green's theorems.

**Differential equations:** First order equation
(linear and nonlinear), Higher order linear differential equations with
constant coefficients, Method of variation of parameters, Cauchy's and
Euler's equations, Initial and boundary value problems, Partial
Differential Equations and variable separable method.

**Complex variables:** Analytic functions,
Cauchy's integral theorem and integral formula, Taylor's and Laurent
series, Residue theorem, solution integrals.

**Probability and Statistics:** Sampling
theorems, Conditional probability, Mean, median, mode and standard
deviation, Random variables, Discrete and continuous distributions,
Poisson, Normal and Binomial distribution, Correlation and regression
analysis.

**Numerical Methods:** Solutions of non-linear algebraic equations, single and multi-step methods for differential equations.

**Transform Theory:** Fourier transform, Laplace transform, Z-transform.

### ELECTRICAL ENGINEERING

**Electric Circuits and Fields:** Network graph,
KCL, KVL, node and mesh analysis, transient response of dc and ac
networks; sinusoidal steady-state analysis, resonance, basic filter
concepts; ideal current and voltage sources, Thevenin's, Norton's and
Superposition and Maximum Power Transfer theorems, two-port networks,
three phase circuits; Gauss Theorem, electric field and potential due
to point, line, plane and spherical charge distributions; Ampere's and
Biot-Savart's laws; inductance; dielectrics; capacitance.

**Signals and Systems:** Representation of
continuous and discrete-time signals; shifting and scaling operations;
linear, time-invariant and causal systems; Fourier series
representation of continuous periodic signals; sampling theorem;
Fourier, Laplace and Z transforms.

**Electrical Machines:** Single phase transformer
- equivalent circuit, phasor diagram, tests, regulation and efficiency;
three phase transformers - connections, parallel operation;
auto-transformer; energy conversion principles; DC machines - types,
windings, generator characteristics, armature reaction and commutation,
starting and speed control of motors; three phase induction motors -
principles, types, performance characteristics, starting and speed
control; single phase induction motors; synchronous machines -
performance, regulation and parallel operation of generators, motor
starting, characteristics and applications; servo and stepper motors.

**Power Systems:** Basic power generation
concepts; transmission line models and performance; cable performance,
insulation; corona and radio interference; distribution systems;
per-unit quantities; bus impedance and admittance matrices; load flow;
voltage control; power factor correction; economic operation;
symmetrical components; fault analysis; principles of over-current,
differential and distance protection; solid state relays and digital
protection; circuit breakers; system stability concepts, swing curves
and equal area criterion; HVDC transmission and FACTS concepts.

**Control Systems:** Principles of feedback;
transfer function; block diagrams; steady-state errors; Routh and
Niquist techniques; Bode plots; root loci; lag, lead and lead-lag
compensation; state space model; state transition matrix,
controllability and observability.

**Electrical and Electronic Measurements:**
Bridges and potentiometers; PMMC, moving iron, dynamometer and
induction type instruments; measurement of voltage, current, power,
energy and power factor; instrument transformers; digital voltmeters
and multimeters; phase, time and frequency measurement; Q-meters;
oscilloscopes; potentiometric recorders; error analysis.

**Analog and Digital Electronics:**
Characteristics of diodes, BJT, FET; amplifiers - biasing, equivalent
circuit and frequency response; oscillators and feedback amplifiers;
operational amplifiers - characteristics and applications; simple
active filters; VCOs and timers; combinational and sequential logic
circuits; multiplexer; Schmitt trigger; multi-vibrators; sample and
hold circuits; A/D and D/A converters; 8-bit microprocessor basics,
architecture, programming and interfacing.

**Power Electronics and Drives:** Semiconductor
power diodes, transistors, thyristors, triacs, GTOs, MOSFETs and IGBTs
- static characteristics and principles of operation; triggering
circuits; phase control rectifiers; bridge converters - fully
controlled and half controlled; principles of choppers and inverters;
basis concepts of adjustable speed dc and ac drives.