A small signal source Vi(t) = A cos 20t + B sin 106 t, is applied to a transistor Amplifier as shown in fig. The transis

A communication channel with AWGN operating at a signal to noise ratio SNR > > 1 and band width B has capacity $${

The amplitude of random signal is uniformly distributed between $$-$$5V and 5V If the signal to quantization noise rati

The amplitude of random signal is uniformly distributed between $$-$$5V and 5V If the positive values of the signal are

The Nyquist plot of a stable transfer function G(s) is shown in the figure. We are interested in the stability of the cl

The unit step response of an under-damped second order system has steady state value of -2. Which one of the following t

The Nyquist plot of a stable transfer function G(s) is shown in the figure. We are interested in the stability of the cl

The magnitude plot of a rational transfer function G(s), with real coefficient is shown in figure. Which of the followin

Consider the system $${{dx} \over {dt}} = Ax + Bu$$ with $${\rm A} = \left[ {\matrix{ 1 & 0 \cr 0 & 1

If X=1 in the logic equation $$\left[ {X + Z\left\{ {\overline Y + (\overline Z + X\overline {Y)} } \right\}} \right]$

What are the minimum number of 2-to 1 multiplexers required to generate a 2-input AND gate and a 2-input EX-OR gate?

The full forms of the abbreviations TTL and COMS in reference to logic families are

What are the counting states (Q1, Q2) for the counter shown in the figure below?

A transmission line terminates in two branches, each of length $$\lambda /4$$, as shown.The branches are terminated by 5

Which of the following statements is true regarding the fundamental mode of the metallic waveguides shown?

Two infinitely long wires carrying current are as shown in the figure below. One wire is in the y-z plane and parallel t

In the circuit below, the diode is ideal. The voltage V is given by

Consider the CMOS circuit shown, where the gate voltage of the n-MOSFET is increased from zero, while the gate voltage o

Consider the CMOS circuit shown, where the gate voltage of the n-MOSFET is increased from zero, while the gate voltage o

The eigen values of the following matrix $$\left[ {\matrix{ { - 1} & 3 & 5 \cr { - 3} & { - 1} &

The Taylor series expansion of $$\,\,{{\sin x} \over {x - \pi }}\,\,$$ at $$x = \pi $$ is given by

If a vector field$$\overrightarrow V $$ is related to another field $$\overrightarrow A $$ through $$\,\overrightarrow

A fair coin is tossed $$10$$ times. What is the probability that only the first two tosses will yield heads?

Consider two independent random variables $$X$$ and $$Y$$ with identical distributions. The variables $$X$$ and $$Y$$ ta

A discrete random variable $$X$$ takes value from $$1$$ to $$5$$ with probabilities as shown in the table. A student cal

Match each differential equation in Group $$I$$ to its family of solution curves from Group $$II.$$ Group $$I$$ $$P:$

The order of differential equation $$\,\,{{{d^2}y} \over {d{t^2}}} + {\left( {{{dy} \over {dx}}} \right)^3} + {y^4} = {e

Given that $$F(s)$$ is the one-sided Laplace transform of $$f(t),$$ the Laplace transform of $$\int\limits_0^t {f\left(

If $$f\left( z \right) = {C_0} + {C_1}{z^{ - 1}}\,\,$$ then $$\oint\limits_{|z| = 1} {{{1 + f\left( z \right)} \over z}}

If the transfer function of the following network is $$\,{{{V_0}(s)} \over {{V_i}(s)}} = {1 \over {2\, + \,sCR}}$$ The

A fully charged mobile phone with a 12 V battery is good for a 10 minute talk-time. Assume that, during the talk-time, t

An AC source of RMS voltage $$20$$ $$V$$ with internal impedance $${Z_s} = \left( {1 + 2j} \right)\Omega $$ feeds a loa

In the circuit shown, what value of RL maximizes the power delivered to RL?

The switch in the circuit shown was on position ‘a’ for a long time and is moved to position ‘b’ at time t = 0. The curr

The time domain behavior of an RL circuit is represented by $$$\mathrm L\frac{\mathrm{di}\left(\mathrm t\right)}{\mathrm

In the interconnection of ideal sources shown in the figure, it is known that the 60V source is absorbing power. Which

Consider a system whose input x and output y are related by the equation $$$y(t) = \int\limits_{ - \infty }^\infty {x(

A system with transfer function H(z) has impulse response h(.) defined as h(2) = 1, h(3) = - 1 and h (k) = 0 otherwise.

An LTI system having transfer function $${{{s^2} + 1} \over {{s^2} + 2s + 1}}$$ and input x(t) = sin (t + 1) is in stead

The ROC of Z-transform of the discrete time sequence x(n)= $${\left( {{1 \over 3}} \right)^{n}}u(n) - {\left( {{1 \over

The Fourier series of a real periodic function has only P. Cosine terms if it is even Q. Sine terms if it is even R. Cos

A function is given by f(t) = sin2t +cos2t . Which of the following is true?

Given that F(s) is the one-sided Laplace transform of f(t), the Laplace transform of $$\int\limits_0^t {f\left( \tau \r

The 4-point Discrete Fourier Transform (DFT) of a discrete time sequence $$\left\{ {1,\,0,\,2,\,3} \right\}$$ is