Free GATE Electronics & Communication (EC) Online Test Series 2027

Preparing for the Electronics & Communication (EC) paper requires consistent practice, strong conceptual understanding, and the ability to solve numerical problems accurately within a limited time. The free GATE EC online test series is designed to help aspirants practice according to the latest examination pattern through chapter-wise tests, topic-wise quizzes, subject tests, and full-length mock examinations. Regular practice allows candidates to evaluate their preparation, identify weak concepts, and improve their overall performance before the examination.

GATE 2026 EC Section 1: Engineering Mathematics Test Series Online

GATE 2026 EC Test Series for Engineering Mathematics covers Linear Algebra, Calculus, Differential Equations, Vector Analysis, Complex Analysis, and Probability & Statistics.

Sub-Topic	Topic Test Link	Sub-Topic	Topic Test Link
Vector space	Start Test	Basis	Start Test
Linear dependence	Start Test	Linear independence	Start Test
Matrix algebra	Start Test	Eigenvalues	Start Test
Eigenvectors	Start Test	Rank	Start Test
Solution of linear equations – existence	Start Test	Solution of linear equations – uniqueness	Start Test
Mean value theorems	Start Test	Theorems of integral calculus	Start Test
Definite integrals	Start Test	Improper integrals	Start Test
Partial derivatives	Start Test	Maxima and minima	Start Test
Multiple integrals	Start Test	Line integrals	Start Test
Surface integrals	Start Test	Volume integrals	Start Test
Taylor series	Start Test	First order linear differential equations	Start Test
First order nonlinear differential equations	Start Test	Higher order linear differential equations	Start Test
Cauchy’s equations	Start Test	Euler’s equations	Start Test
Variation of parameters	Start Test	Complementary function	Start Test
Particular integral	Start Test	Partial differential equations	Start Test
Variable separable method	Start Test	Initial value problems	Start Test
Boundary value problems	Start Test	Vectors in plane	Start Test
Vectors in space	Start Test	Vector operations	Start Test
Gradient	Start Test	Divergence	Start Test
Curl	Start Test	Gauss’s theorem	Start Test
Green’s theorem	Start Test	Stokes’ theorem	Start Test
Analytic functions	Start Test	Cauchy’s integral theorem	Start Test
Cauchy’s integral formula	Start Test	Sequences	Start Test
Series	Start Test	Convergence tests	Start Test
Taylor series (complex)	Start Test	Laurent series	Start Test
Residue theorem	Start Test	Mean	Start Test
Median	Start Test	Mode	Start Test
Standard deviation	Start Test	Combinatorial probability	Start Test
Probability distributions	Start Test	Binomial distribution	Start Test
Poisson distribution	Start Test	Exponential distribution	Start Test
Normal distribution	Start Test	Joint probability	Start Test
Conditional probability	Start Test

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GATE 2026 EC Section 2: Networks, Signals and Systems Test Series Online

GATE 2026 EC Test Series for Networks, Signals and Systems covers Circuit Analysis (node/mesh analysis, Thevenin, Norton, reciprocity, phasors, complex power, maximum power transfer, Laplace transform, RL/RC/RLC circuits, 2-port parameters, wye-delta), Continuous-time Signals (Fourier series, Fourier transform, sampling theorem), Discrete-time Signals (DTFT, DFT, z-transform, discrete-time processing), and LTI Systems (causality, stability, impulse response, convolution, poles/zeros, frequency response, group delay, phase delay).

Sub-Topic	Topic Test Link	Sub-Topic	Topic Test Link
Node analysis	Start Test	Mesh analysis	Start Test
Superposition theorem	Start Test	Thevenin’s theorem	Start Test
Norton’s theorem	Start Test	Reciprocity theorem	Start Test
Sinusoidal steady state analysis	Start Test	Phasors	Start Test
Complex power	Start Test	Maximum power transfer	Start Test
Time domain analysis of linear circuits	Start Test	Frequency domain analysis of linear circuits	Start Test
RL circuits	Start Test	RC circuits	Start Test
RLC circuits	Start Test	Solution of network equations using Laplace transform	Start Test
Linear 2-port network parameters	Start Test	Wye-delta transformation	Start Test
Continuous-time signals	Start Test	Fourier series	Start Test
Fourier transform	Start Test	Sampling theorem	Start Test
Sampling applications	Start Test	Discrete-time signals	Start Test
DTFT	Start Test	DFT	Start Test
Z-transform	Start Test	Discrete-time processing of continuous-time signals	Start Test
LTI systems – definition	Start Test	LTI systems – properties	Start Test
Causality	Start Test	Stability	Start Test
Impulse response	Start Test	Convolution	Start Test
Poles and zeroes	Start Test	Frequency response	Start Test
Group delay	Start Test	Phase delay	Start Test

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GATE 2026 EC Section 3: Electronic Devices Test Series Online

GATE 2026 EC Test Series for Electronic Devices covers Energy bands in intrinsic/extrinsic semiconductors, equilibrium carrier concentration, direct/indirect band-gap semiconductors, Carrier Transport (diffusion current, drift current, mobility, resistivity, generation/recombination, Poisson and continuity equations), and P-N junction, Zener diode, BJT, MOS capacitor, MOSFET, LED, photo diode, and solar cell.

Sub-Topic	Topic Test Link	Sub-Topic	Topic Test Link
Energy bands in intrinsic semiconductors	Start Test	Energy bands in extrinsic semiconductors	Start Test
Equilibrium carrier concentration	Start Test	Direct band-gap semiconductors	Start Test
Indirect band-gap semiconductors	Start Test	Diffusion current	Start Test
Drift current	Start Test	Mobility	Start Test
Resistivity	Start Test	Generation of carriers	Start Test
Recombination of carriers	Start Test	Poisson equation	Start Test
Continuity equations	Start Test	P-N junction	Start Test
Zener diode	Start Test	BJT	Start Test
MOS capacitor	Start Test	MOSFET	Start Test
LED	Start Test	Photo diode	Start Test
Solar cell	Start Test

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GATE 2026 EC Section 4: Analog Circuits Test Series Online

GATE 2026 EC Test Series for Analog Circuits covers Diode Circuits (clipping, clamping, rectifiers), BJT and MOSFET Amplifiers (biasing, AC coupling, small signal analysis, frequency response, current mirrors, differential amplifiers), and Op-amp Circuits (amplifiers, summers, differentiators, integrators, active filters, Schmitt triggers, oscillators).

Sub-Topic	Topic Test Link	Sub-Topic	Topic Test Link
Diode clipping circuits	Start Test	Diode clamping circuits	Start Test
Diode rectifiers	Start Test	BJT amplifiers – biasing	Start Test
BJT amplifiers – AC coupling	Start Test	BJT amplifiers – small signal analysis	Start Test
BJT amplifiers – frequency response	Start Test	MOSFET amplifiers – biasing	Start Test
MOSFET amplifiers – AC coupling	Start Test	MOSFET amplifiers – small signal analysis	Start Test
MOSFET amplifiers – frequency response	Start Test	Current mirrors	Start Test
Differential amplifiers	Start Test	Op-amp amplifiers	Start Test
Op-amp summers	Start Test	Op-amp differentiators	Start Test
Op-amp integrators	Start Test	Active filters	Start Test
Schmitt triggers	Start Test	Oscillators	Start Test

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GATE 2026 EC Section 5: Digital Circuits Test Series Online

GATE 2026 EC Test Series for Digital Circuits covers Number Representations (binary, integer, floating-point), Combinatorial Circuits (Boolean algebra, minimization, Karnaugh map, logic gates, CMOS implementation, arithmetic circuits, code converters, multiplexers, decoders), Sequential Circuits (latches, flip-flops, counters, shift-registers, finite state machines, propagation delay, setup/hold time, critical path delay), Data Converters (sample and hold, ADCs, DACs), Semiconductor Memories (ROM, SRAM, DRAM), and Computer Organization (machine instructions, addressing modes, ALU, data-path, control unit, instruction pipelining).

Sub-Topic	Topic Test Link	Sub-Topic	Topic Test Link
Binary number representation	Start Test	Integer representation	Start Test
Floating-point representation	Start Test	Boolean algebra	Start Test
Minimization using Boolean identities	Start Test	Karnaugh map	Start Test
Logic gates	Start Test	Static CMOS implementation	Start Test
Arithmetic circuits	Start Test	Code converters	Start Test
Multiplexers	Start Test	Decoders	Start Test
Latches	Start Test	Flip-flops	Start Test
Counters	Start Test	Shift-registers	Start Test
Finite state machines	Start Test	Propagation delay	Start Test
Setup time	Start Test	Hold time	Start Test
Critical path delay	Start Test	Sample and hold circuits	Start Test
ADCs	Start Test	DACs	Start Test
ROM	Start Test	SRAM	Start Test
DRAM	Start Test	Machine instructions	Start Test
Addressing modes	Start Test	ALU	Start Test
Data-path	Start Test	Control unit	Start Test
Instruction pipelining	Start Test

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GATE 2026 EC Section 6: Control Systems Test Series Online

GATE 2026 EC Test Series for Control Systems covers Basic control system components, Feedback principle, Transfer function, Block diagram representation, Signal flow graph, Transient and steady-state analysis of LTI systems, Frequency response, Routh-Hurwitz and Nyquist stability criteria, Bode and root-locus plots, Lag/lead/lag-lead compensation, State variable model and solution of state equation of LTI systems.

Sub-Topic	Topic Test Link	Sub-Topic	Topic Test Link
Basic control system components	Start Test	Feedback principle	Start Test
Transfer function	Start Test	Block diagram representation	Start Test
Signal flow graph	Start Test	Transient analysis of LTI systems	Start Test
Steady-state analysis of LTI systems	Start Test	Frequency response	Start Test
Routh-Hurwitz stability criterion	Start Test	Nyquist stability criterion	Start Test
Bode plots	Start Test	Root-locus plots	Start Test
Lag compensation	Start Test	Lead compensation	Start Test
Lag-lead compensation	Start Test	State variable model	Start Test
Solution of state equation of LTI systems	Start Test

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GATE 2026 EC Section 7: Communications Test Series Online

GATE 2026 EC Test Series for Communications covers Random Processes (autocorrelation, power spectral density, white noise, filtering through LTI systems), Analog Communications (AM, FM, demodulation, spectra, super heterodyne receivers), Information Theory (entropy, mutual information, channel capacity theorem), Digital Communications (PCM, DPCM, ASK, PSK, FSK, QAM, bandwidth, ISI, MAP, ML detection, matched filter, SNR, BER, Hamming codes, CRC).

Sub-Topic	Topic Test Link	Sub-Topic	Topic Test Link
Autocorrelation	Start Test	Power spectral density	Start Test
Properties of white noise	Start Test	Filtering of random signals through LTI systems	Start Test
Amplitude modulation	Start Test	Amplitude demodulation	Start Test
Angle modulation	Start Test	Angle demodulation	Start Test
Spectra of AM	Start Test	Spectra of FM	Start Test
Super heterodyne receivers	Start Test	Entropy	Start Test
Mutual information	Start Test	Channel capacity theorem	Start Test
PCM	Start Test	DPCM	Start Test
ASK	Start Test	PSK	Start Test
FSK	Start Test	QAM	Start Test
Bandwidth	Start Test	Inter-symbol interference	Start Test
MAP detection	Start Test	ML detection	Start Test
Matched filter receiver	Start Test	SNR	Start Test
BER	Start Test	Error correction fundamentals	Start Test
Hamming codes	Start Test	CRC	Start Test

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GATE 2026 EC Section 8: Electromagnetics Test Series Online

GATE 2026 EC Test Series for Electromagnetics covers Maxwell’s Equations (differential/integral forms, boundary conditions, wave equation, Poynting vector), Plane Waves and Properties (reflection, refraction, polarization, phase/group velocity, propagation through media, skin depth), Transmission Lines (equations, characteristic impedance, impedance matching, impedance transformation, S-parameters, Smith chart), and Rectangular/circular waveguides, optical fibers, dipole/monopole antennas, linear antenna arrays.

Sub-Topic	Topic Test Link	Sub-Topic	Topic Test Link
Maxwell’s equations – differential form	Start Test	Maxwell’s equations – integral form	Start Test
Interpretation of Maxwell’s equations	Start Test	Boundary conditions	Start Test
Wave equation	Start Test	Poynting vector	Start Test
Plane waves	Start Test	Reflection	Start Test
Refraction	Start Test	Polarization	Start Test
Phase velocity	Start Test	Group velocity	Start Test
Propagation through various media	Start Test	Skin depth	Start Test
Transmission line equations	Start Test	Characteristic impedance	Start Test
Impedance matching	Start Test	Impedance transformation	Start Test
S-parameters	Start Test	Smith chart	Start Test
Rectangular waveguides	Start Test	Circular waveguides	Start Test
Light propagation in optical fibers	Start Test	Dipole antennas	Start Test
Monopole antennas	Start Test	Linear antenna arrays	Start Test

The mock tests cover important areas of Electronics & Communication Engineering, enabling candidates to strengthen their fundamentals while developing effective time management and problem-solving skills. By analyzing every test, aspirants can focus on improving weaker subjects and maximize their chances of securing a better GATE score.

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Free GATE Electronics & Communication (EC) Test Series 2027 Overview

Particular	Details
Examination	GATE 2027
Paper Code	EC
Subject	Electronics & Communication Engineering
Test Mode	Online
Test Types	Chapter-wise, Topic-wise, Subject-wise & Full-Length Mock Tests
Cost	Free
Question Pattern	Based on the Latest GATE Examination Pattern
Suitable For	GATE EC Aspirants

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Why Practice the GATE EC Online Test Series?

The Electronics & Communication paper includes conceptual, analytical, and numerical questions from multiple engineering subjects. Practicing online mock tests regularly helps candidates improve speed, accuracy, and confidence while becoming familiar with the computer-based examination format. It also enables aspirants to monitor their preparation level and revise important concepts before the examination.

Key benefits include:

• Free online mock tests
• Chapter-wise practice
• Topic-wise quizzes
• Subject-wise mock tests
• Full-length online examinations
• Better speed and time management
• Detailed performance analysis
• Complete revision support

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Features of the Free GATE EC Mock Tests

The test series is designed to provide an exam-like experience while covering the complete Electronics & Communication syllabus. Candidates can practice questions from different topics, evaluate their progress, and improve their preparation through continuous assessment.

The test series offers:

• Chapter-wise practice tests
• Topic-wise question banks
• Subject-wise mock examinations
• Full-length online tests
• Instant score analysis
• Latest GATE examination pattern
• Unlimited online practice
• Mobile and desktop accessibility

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How to Use the GATE EC Test Series for Better Preparation

Begin your preparation by studying one Electronics & Communication subject at a time, such as Electronic Devices, Analog Circuits, Digital Circuits, Signals & Systems, Networks, Control Systems, Communication Systems, Electromagnetics, or Engineering Mathematics. After completing each topic, attempt the corresponding chapter-wise mock tests to evaluate your conceptual understanding and identify mistakes.

Once several subjects are completed, solve subject-wise mock tests to strengthen your preparation across broader sections of the syllabus. After covering the complete EC syllabus, regularly attempt full-length mock examinations under timed conditions to simulate the actual examination. Review every incorrect answer carefully, revise important formulas and concepts, and continue practicing consistently to improve your speed, accuracy, confidence, and overall GATE EC score.

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Conclusion

Success in the Electronics & Communication paper depends on regular practice, conceptual clarity, and effective revision. By solving free online mock tests consistently, analyzing your performance, and improving weak areas, you can enhance your problem-solving skills, build examination confidence, and achieve a higher score in GATE 2027.