GATE 2027 Preparation Tips for Electrical Engineering (EE) – Strategy & Study Plan

Name

Topics

Engineering Mathematics

• 
  Linear Algebra

• Differential Equations

• Transform Theory

• Probability and Statistics

• Complex Variables

• Calculus

• Numerical Methods

Electric Circuits

• 
  Network graph

• Transient response of DC and AC networks

• Thevenin’s theorem

• Maximum power transfer theorem

• Resonance

• KCL, KVL, Node and Mesh analysis

• Sinusoidal steady‐state analysis

• Norton’s theorem

• Two‐port networks

• Superposition theorem

• Passive filters

• Ideal current and voltage sources

• Three-phase circuits

• Power and power factor in AC circuits.

Electromagnetic Fields

• 
  Coulomb's Law

• Electric Field Intensity

• Electric field and potential due to point, line, plane, and spherical charge distributions

• Faraday’s law

• Biot‐Savart’s law

• Electric Flux Density

• Gauss's Law

• Divergence

• Effect of dielectric medium

• Capacitance of simple configurations

• Ampere’s law

• Magnetic circuits

• Curl

• Lorentz force

• Inductance

• Magnetomotive force

• Reluctance

• Self and Mutual inductance of simple configurations.

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

• Applications of the Fourier Transform

• Laplace Transform and z-Transform.

Electrical Machines

• 
  Single-phase transformer: equivalent circuit, phasor diagram, open circuit, and short circuit tests, regulation, and efficiency

• Three-phase transformers: connections, parallel operation

• Auto‐transformer

• Electromechanical energy conversion principles

• DC machines: separately excited, series, and shunt, motoring and generating mode of operation, and their characteristics, starting and speed control of DC motors

• Three-phase induction motors: principle of operation, types, performance, torque-speed characteristics, no-load and blocked rotor tests, equivalent circuit, starting and speed control

• Operating principle of single-phase induction motors

• Synchronous machines: cylindrical and salient pole machines, performance, regulation, and parallel operation of generators, starting of synchronous motor, characteristics

• Types of losses and efficiency calculations of electric machines.

Power Systems

• 
  Power generation concepts, AC and DC transmission concepts

• Models and performance of transmission lines and cables

• Series and shunt compensation

• Electric field distribution and insulators

• Distribution systems

• Per‐unit quantities

• Bus admittance matrix

• Gauss-Seidel and Newton-Raphson load flow methods

• Voltage and Frequency control

• Power factor correction

• Symmetrical components

• Symmetrical and unsymmetrical fault analysis

• Principles of over‐current, differential, and distance protection

• Circuit breakers

• System stability concepts

• Equal area criterion.

Control Systems

• 
  Mathematical modeling and representation of systems

• Feedback principle, transfer function

• Block diagrams and Signal flow graphs

• Transient and Steady‐state analysis of linear time-invariant systems

• Routh-Hurwitz and Nyquist criteria

• Bode plots

• Root loci

• Stability analysis

• Lag

• Lead and Lead‐Lag Compensators

• P, PI, and PID controllers

• State space model

• State transition matrix

Electrical and Electronic Measurements

• 
  Bridges and Potentiometers

• Measurement of voltage, current, power, energy, and power factor

• Instrument transformers

• Digital voltmeters and multimeters

• Phase, Time, and Frequency measurement

• Oscilloscopes

• Error analysis

Analog and Digital Electronics

• 
  Characteristics of diodes

• BJT

• MOSFET

• Simple diode circuits: clipping, clamping, rectifiers

• 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

• Demultiplexer

• Schmitt trigger

• Sample and hold circuits

• A/D and D/A converters

• 8085Microprocessor

• Architecture

• Programming and Interfacing.

Power Electronics

• 
  Characteristics of semiconductor power devices

• Diode

• Thyristor

• Triac

• GTO, MOSFET, IGBT

• DC to DC conversion

• Buck, Boost, and Buck-Boost converters

• Single and three-phase configuration of uncontrolled rectifiers

• Line-commutated thyristor-based converters

• Bidirectional AC to DC voltage source converters

• Issues of line current harmonics

• Power factor

• Distortion factor of AC to DC converters

• Single-phase and three-phase inverters

Subject

Author

Network Theory

William H. Hayt and A Chakrabarti

Electromagnetic Field Theory

Matthew N.O. Sadiku

Measurement

A.K. Sawhney

Control Systems

B.S. Manke and A. Nagoor Kani

Signals and Systems

Alan V. Oppenheim

Digital Electronics

M. Morris Mano

Electrical Machines

V.K. Mehta and C.L. Wadhwa also used P.S. Bhimbhra as a Reference for Power Systems

Power Electronics

P.S. Bhimbhra

Engineering Mathematics

Made Easy Book, Ace Previous Year Maths book for Practice Aptitude

Chapter Name

Number of questions

Weightage

Analog and Digital Electronics

6

9.23%

Control Systems

4

6.15%

Electric Circuits

7

10.77%

Electrical and Electronic Measurements

1

1.54%

Electrical Machines

7

10.77%

Electromagnetic Fields

4

6.15%

Engineering Mathematics

11

16.92%

General Aptitude

10

15.38%

Power Electronics

4

6.15%

Power Systems

7

10.77%

Signals and Systems

4

6.15%

Grand Total

65

100.00%

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