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ISRO Scientist Engineer (electronics and Communication) 2026 Free Mock Test Practice
Free Important Questions
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ISRO Scientist Engineer Electronics
Combo - 6 (English)
1. Online Mock Test Series in English = 20 Tests.
2. Question Bank - 2000 Questions with Answer.
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4. 1500 (+) Current Affairs MCQ with Answer PDF in English.
5. 1000 (+) GK MCQ with Answer PDF Book in English.
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Combo - 7 (Hindi)
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2. Question Bank - 2000 Questions with Answer.
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Combo - 8 (English)
1. Online Mock Test Series in English = 20 Tests.
2. Question Bank - 2000 Questions with Answer.
3. Printed Material 10 Mock Test Papers with OMR Sheet.
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5. 1500 (+) Current Affairs MCQ with Answer PDF in English.
6. 1000 (+) GK MCQ with Answer PDF Book in English.
2. Question Bank - 2000 Questions with Answer.
3. Printed Material 10 Mock Test Papers with OMR Sheet.
4. EBook of ISRO Scientist Electronics (1000 MCQ) PDF Format in English.
5. 1500 (+) Current Affairs MCQ with Answer PDF in English.
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ISRO Scientist Engineer (Electronics) Syllabus 2026, Exam Pattern
ISRO Scientist Engineer Electronics Syllabus 2026, Exam Pattern, Exam Date 2026
Detail Information about ISRO has published notification 2026 for the recruitment of Scientist EC (Electronics and Communication Engineering) vacancies. Those Candidates who are Interested to the following vacancy and completed all Eligibility Criteria can read the Notification & Apply Online. In this page we provide the Complete Syllabus of this Recruitment with Latest Update Exam Pattern and the Exam Date also.
ISRO Scientist Engineer Syllabus 2026 Overview
ISRO Scientist Engineer Electronics Syllabus 2026
Part A: Electronics and Communication Engineering :
Networks, Signals, and Systems :-
Circuit analysis: Node and mesh analysis, superposition, Thevenin’s theorem, Norton’s theorem, reciprocity. Sinusoidal steady state analysis: phasors, complex power, maximum power transfer. Time and frequency domain analysis of linear circuits: RL, RC, and RLC circuits, solution of network equations using Laplace transform. Linear 2-port network parameters, wye-delta transformation.
Continuous-time signals: Fourier series and Fourier transform, sampling theorem and applications.
Discrete-time signals: DTFT, DFT, z-transform, discrete-time processing of continuous-time signals. LTI systems: definition and properties, causality, stability, impulse response, convolution, poles and zeroes, frequency response, group delay, phase delay.
Electronic Devices :-
Energy bands in intrinsic and extrinsic semiconductors, equilibrium carrier concentration, direct and indirect band-gap semiconductors.
Carrier transport: diffusion current, drift current, mobility and resistivity, generation and recombination of carriers, Poisson and continuity equations.
P-N junction, Zener diode, BJT, MOS capacitor, MOSFET, LED, photo diode and solar cell.
Analog Circuits :-
Diode circuits: clipping, clamping, and rectifiers.
BJT and MOSFET amplifiers: biasing, ac coupling, small signal analysis, frequency response. Current mirrors and differential amplifiers.
Op-amp circuits: Amplifiers, summers, differentiators, integrators, active filters, Schmitt trigger,s and oscillators.
Digital Circuits :-
Number representations: binary, integer and floating-point- numbers. Combinatorial circuits: Boolean algebra, minimization of functions using Boolean identities and Karnaugh map, logic gates and their static CMOS implementations, arithmetic circuits, code converters, multiplexers, decoders.
Sequential circuits: latches and flip-flops, counters, shift-registers, finite state machines, propagation delay, setup and hold time, critical path delay.
Data converters: sample and hold circuits, ADCs, and DACs.
Semiconductor memories: ROM, SRAM, DRAM.
Computer organization: Machine instructions and addressing modes, ALU, data-path, and control unit, instruction pipelining.
Control Systems :-
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 and lag- lead compensation; State variable model and solution of state equation of LTI systems.
Communications :-
Random processes: autocorrelation and power spectral density, properties of white noise, filtering of random signals through LTI systems.
Analog communications: amplitude modulation and demodulation, angle modulation and demodulation, spectra of AM and FM, super heterodyne receivers.
Information theory: entropy, mutual information, and channel capacity theorem.
Digital communications: PCM, DPCM, digital modulation schemes (ASK, PSK, FSK, QAM), bandwidth, inter-symbol interference, MAP, ML detection, matched filter receiver, SNR, and BER.
Fundamentals of error correction, Hamming codes, and CRC.
Electromagnetics :-
Maxwell’s equations: differential and integral forms and their interpretation, boundary conditions, wave equation, Poynting vector.
Plane waves and properties: reflection and refraction, polarization, phase and group velocity, propagation through various media, skin depth.
Transmission lines: equations, characteristic impedance, impedance matching, impedance transformation, S-parameters, Smith chart.
Rectangular and circular waveguides, light propagation in optical fibers, dipole and monopole antennas, and linear antenna arrays.
Part B: Aptitude/Ability :
1. Reasoning
2. Logical Reasoning
3. Diagrammatic Reasoning
4. Abstract Reasoning and Deductive Reasoning
ISRO Scientist Engineer Electronics Exam Pattern 2026
Duration : 120 Minutes
Exam Date : Notified Soon
Starting Date of Application Form : 27th August 2026
Last Date of Application Form : 16th September 2026
Total Post : 99
ISRO Scientist Engineer Syllabus 2026 Overview
| Name of the Organization | Indian Space Research Organization (ISRO) |
| Post Name | Scientist Engineer ‘SC’ (Electronics Scientist/Engineer) |
| Total Post | 99 |
| Selection Process | Written Test / Interview |
| Category | Syllabus and Exam Pattern |
| Official Website | www.isro.gov.in |
ISRO Scientist Engineer Electronics Syllabus 2026
Part A: Electronics and Communication Engineering :
Networks, Signals, and Systems :-
Circuit analysis: Node and mesh analysis, superposition, Thevenin’s theorem, Norton’s theorem, reciprocity. Sinusoidal steady state analysis: phasors, complex power, maximum power transfer. Time and frequency domain analysis of linear circuits: RL, RC, and RLC circuits, solution of network equations using Laplace transform. Linear 2-port network parameters, wye-delta transformation.
Continuous-time signals: Fourier series and Fourier transform, sampling theorem and applications.
Discrete-time signals: DTFT, DFT, z-transform, discrete-time processing of continuous-time signals. LTI systems: definition and properties, causality, stability, impulse response, convolution, poles and zeroes, frequency response, group delay, phase delay.
Electronic Devices :-
Energy bands in intrinsic and extrinsic semiconductors, equilibrium carrier concentration, direct and indirect band-gap semiconductors.
Carrier transport: diffusion current, drift current, mobility and resistivity, generation and recombination of carriers, Poisson and continuity equations.
P-N junction, Zener diode, BJT, MOS capacitor, MOSFET, LED, photo diode and solar cell.
Analog Circuits :-
Diode circuits: clipping, clamping, and rectifiers.
BJT and MOSFET amplifiers: biasing, ac coupling, small signal analysis, frequency response. Current mirrors and differential amplifiers.
Op-amp circuits: Amplifiers, summers, differentiators, integrators, active filters, Schmitt trigger,s and oscillators.
Digital Circuits :-
Number representations: binary, integer and floating-point- numbers. Combinatorial circuits: Boolean algebra, minimization of functions using Boolean identities and Karnaugh map, logic gates and their static CMOS implementations, arithmetic circuits, code converters, multiplexers, decoders.
Sequential circuits: latches and flip-flops, counters, shift-registers, finite state machines, propagation delay, setup and hold time, critical path delay.
Data converters: sample and hold circuits, ADCs, and DACs.
Semiconductor memories: ROM, SRAM, DRAM.
Computer organization: Machine instructions and addressing modes, ALU, data-path, and control unit, instruction pipelining.
Control Systems :-
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 and lag- lead compensation; State variable model and solution of state equation of LTI systems.
Communications :-
Random processes: autocorrelation and power spectral density, properties of white noise, filtering of random signals through LTI systems.
Analog communications: amplitude modulation and demodulation, angle modulation and demodulation, spectra of AM and FM, super heterodyne receivers.
Information theory: entropy, mutual information, and channel capacity theorem.
Digital communications: PCM, DPCM, digital modulation schemes (ASK, PSK, FSK, QAM), bandwidth, inter-symbol interference, MAP, ML detection, matched filter receiver, SNR, and BER.
Fundamentals of error correction, Hamming codes, and CRC.
Electromagnetics :-
Maxwell’s equations: differential and integral forms and their interpretation, boundary conditions, wave equation, Poynting vector.
Plane waves and properties: reflection and refraction, polarization, phase and group velocity, propagation through various media, skin depth.
Transmission lines: equations, characteristic impedance, impedance matching, impedance transformation, S-parameters, Smith chart.
Rectangular and circular waveguides, light propagation in optical fibers, dipole and monopole antennas, and linear antenna arrays.
Part B: Aptitude/Ability :
1. Reasoning
2. Logical Reasoning
3. Diagrammatic Reasoning
4. Abstract Reasoning and Deductive Reasoning
ISRO Scientist Engineer Electronics Exam Pattern 2026
Duration : 120 Minutes
| Part | Subject | No.of Question | Marks | Negative Marking | Duration |
| Part A | Electronics and Communication Engineering | 80 | 80 | 0.33 | 90 Minutes |
| Part B | Aptitude/Ability | 15 | 20 | No Negative Marking | 30 Minutes |
| Total | 95 | 100 | 120 Minutes |
Exam Date : Notified Soon
Starting Date of Application Form : 27th August 2026
Last Date of Application Form : 16th September 2026
Total Post : 99
FAQs
ISRO Scientist Engineer (electronics and Communication) 2026 Exam Syllabus Frequently Asked Questions (FAQ's)
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