I qualified the written exam in but was unable to qualify the interview. The interview is regarded as one of the toughest technical interviews for PSUs. No HR, no MR, only technical. So this blog post is not gonna tell you how to crack the interview but not to commit mistakes which I did. Important: This blog post is for computer science stream strictly and based on pattern. This can be changed in coming next year.

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Calculus: Mean value theorems, Theorems of integral calculus, Evaluation of definite and improper integrals, Partial Derivatives, Maxima and minima, Multiple integrals, Fourier series. 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. Electronics and Communication Engineering Networks: Network graphs: matrices associated with graphs; incidence, fundamental cut set and fundamental circuit matrices.

Solution methods: nodal and mesh analysis. Steady state sinusoidal analysis using phasors. Linear constant coefficient differential equations; time domain analysis of simple RLC circuits, Solution of network equations using Laplace transform: frequency domain analysis of RLC circuits.

State equations for networks. Electronic Devices: Energy bands in silicon, intrinsic and extrinsic silicon. Carrier transport in silicon: diffusion current, drift current, mobility, and resistivity.

Generation and recombination of carriers. Device technology: integrated circuits fabrication process, oxidation, diffusion, ion implantation, photolithography, n-tub, p-tub and twin-tub CMOS process. Simple diode circuits, clipping, clamping, rectifier.

Biasing and bias stability of transistor and FET amplifiers. Amplifiers: single-and multi-stage, differential and operational, feedback, and power. Frequency response of amplifiers. Simple op-amp circuits. Sinusoidal oscillators; criterion for oscillation; single-transistor and op-amp configurations. Function generators and wave-shaping circuits, Timers. Power supplies. Sequential circuits: latches and flip-flops, counters and shift-registers.

Semiconductor memories. Sampling theorem. Linear Time-Invariant LTI Systems: definitions and properties; causality, stability, impulse response, convolution, poles and zeros, parallel and cascade structure, frequency response, group delay, phase delay. Signal transmission through LTI systems. Control Systems: Basic control system components; block diagrammatic description, reduction of block diagrams. Open loop and closed loop feedback systems and stability analysis of these systems.

Signal flow graphs and their use in determining transfer functions of systems; transient and steady state analysis of LTI control systems and frequency response. Control system compensators: elements of lead and lag compensation, elements of Proportional-Integral-Derivative PID control. State variable representation and solution of state equation of LTI control systems.

Communications: Random signals and noise: probability, random variables, probability density function, autocorrelation, power spectral density. Analog communication systems: amplitude and angle modulation and demodulation systems, spectral analysis of these operations, superheterodyne receivers; elements of hardware, realizations of analog communication systems; signal-to-noise ratio SNR calculations for amplitude modulation AM and frequency modulation FM for low noise conditions.

Fundamentals of information theory and channel capacity theorem. Digital communication systems: pulse code modulation PCM , differential pulse code modulation DPCM , digital modulation schemes: amplitude, phase and frequency shift keying schemes ASK, PSK, FSK , matched filter receivers, bandwidth consideration and probability of error calculations for these schemes.

Wave equation, Poynting vector. Plane waves: propagation through various media; reflection and refraction; phase and group velocity; skin depth. Transmission lines: characteristic impedance; impedance transformation; Smith chart; impedance matching; S parameters, pulse excitation. Waveguides: modes in rectangular waveguides; boundary conditions; cut-off frequencies; dispersion relations.

Basics of propagation in dielectric waveguide and optical fibers. Basics of Antennas: Dipole antennas; radiation pattern; antenna gain. Leave a Reply Your email address will not be published.

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## ISRO Syllabus 2020 Pdf – ISRO Scientist Engineer SC Exam Pattern @isro.gov.in

Calculus: Mean value theorems, Theorems of integral calculus, Evaluation of definite and improper integrals, Partial Derivatives, Maxima and minima, Multiple integrals, Fourier series. 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. Electronics and Communication Engineering Networks: Network graphs: matrices associated with graphs; incidence, fundamental cut set and fundamental circuit matrices. Solution methods: nodal and mesh analysis.

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## BARC previous questions sample paper for electronics(ECE)-2016

October 8, at PM An antenna is a physical device that radiates energy, almost always with some directional dependence. Even an omni-directional antenna will have one or two narrow directions where there is a reduction or a null in the radiated energy. The energy leaving an antenna is also polarized — meaning that the electric field is in a particular orientation. Theoretically, for efficient transfer of energy between two antennas, their respective radiation patterns must be optimized in the correct direction and the antennas must be polarized with the same orientation.

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## BARC Electronics & Communication (EC) 2020 Exam Pattern & Syllabus

Arashilkis Operational Amplifier; Wave shaping and switching circuits. In specialization part can i select control system as my specialization. Time lag, hysterisis, linearity concepts. Notify me of follow-up comments by email. Books to be referred?