If the circuit shown has to function as a clamping circuit, which one of the following conditions should be satisfied fo

The diode in the circuit given below has VON = 0.7V but is ideal otherwise. The current (in mA) in the 4kΩ resistor is _

In the ac equivalent circuit shown, the two BJTs are biased in active region and have identical parameters with β >&

In the circuit shown, VO = VOA for switch SW in position A and V0= VOB for SW in position B. Assume that the opamp is id

In the bistable circuit shown, the ideal opamp has saturation levels of $$ \pm 5V.$$ The value of R1 (in k$$\Omega $$ )

For the voltage regulator circuit shown, the input voltage (Vin) is 20V $$ \pm $$ 20% and the regulated output voltage

Assuming that the op-amp in the circuit shown below is ideal, the output voltage V0 (in volts)

A zero mean white Gaussian noise having power spectral density $${{{N_0}} \over 2}$$ is passed through an $$ LTI $$ filt

$$\mathop {\left\{ {{X_n}} \right\}}\nolimits_{n = - \infty }^{n = \infty } $$ is an independent and identically distri

Let $$X \in \left\{ {0,1} \right\}$$ and $$Y \in \left\{ {0,1} \right\}$$ be two independent binary random variables. If

A sinusoidal signal of amplitude A is quantized by a uniform quantizer. Assume that the signal utilizes all the represen

Consider a binary, digital communication system which uses pulses g (t) and − g (t)for transmitting bits over an AWGN ch

The state variable representation of a system is given as $$$\eqalign{ & \mathop x\limits^ \bullet = \left[ {\ma

By performing cascading and/or summing/differencing operations using transfer function blocks G1(s) and G2(s), one CANNO

For the signal flow graph shown in the figure, the value of $$\frac{\mathrm C\left(\mathrm s\right)}{\mathrm R\left(\mat

A unity negative feedback system has an open–loop transfer function $$G\left(s\right)=\frac K{s\left(s+1\right)}$$.The g

The output of a standard second–order system for a unit step input is given as $$$y\left(t\right)=1-\frac2{\sqrt3}e^{-t}

The transfer function of a mass-spring damper system is given by $${\rm{G(s) = }}{1 \over {M{s^2} + Bs + K}}$$ The freq

A function of Boolean variables X,Y and Z is expressed in terms of the min-terms as F(X, Y, Z)=$$\sum\limits_{}^{} {} $$

In the figure shown, the output ܻ is required to be ܻ Y=AB+ $$\overline C $$$$\overline D $$. The gates G1 and G2 must b

A 1-to-8 demultiplexer with data input D$$_{in}$$ , address inputs S$$_{0}$$, S$$_{1}$$, S$$_{2}$$ (with S$$_{0}$$ as th

A mod-n counter using a synchronous binary up-counter with synchronous clear input is shown in the figure. The value of

The figure shows a binary counter with synchronous clear input. With the decoding logic shown, the counter works as a

An air-filled rectangular waveguide of internal dimension $$a\,\,cm\,\, \times \,\,b\,\,cm$$ (a > b) has a cutoff fre

The electric field of a uniform plane electromagnetic wave is $$$\vec E = \left( {{{\overrightarrow a }_x} + j4{{\overr

The electric field intensity of a plane wave propagating in a lossless non-magnetic medium is given by the following exp

Two half-wave dipole antennas placed as shown in the figure are excited with sinusoidally varying currents of frequency

In a source free region in vacuum, if the electrostatic potential $$\varphi\;=\;2x^2\;+y^2+cz^2$$ , the value of constan

An n–type silicon sample is uniformly illuminated with light which generates 1020 electron hole pairs per cm3 per second

A piece of silicon is doped uniformly with phosphorous with a doping concentration of $$10^{16}/cm^2$$. The expected val

A dc voltage of 10V is applied across an n–type silicon bar having a rectangular cross–section and a length of 1cm as sh

In a MOS capacitor with an oxide layer thickness of 10 nm, the maximum depletion layer thickness is 100 nm. The permitti

The value of $$'x'$$ for which all the eigenvalues of the matrix given below are real is $$\left[ {\matrix{ {10} &am

The value of the integral $$\int_{ - \infty }^\infty {12\,\,\cos \left( {2\pi t} \right){{\sin \left( {4\pi t} \right)}

Let the random variable $$X$$ represent the number of times a fair coin needs to be tossed till two consecutive heads ap

Let $$\,\,X \in \left\{ {0,1} \right\}\,\,$$ and $$\,\,Y \in \left\{ {0,1} \right\}\,\,$$ be two independent binary rand

Ram and Ramesh appeared in an interview for two vacancies in the same department. The probability of Ram's selection is

The general solution of the differential equation $$\,\,{{dy} \over {dx}} = {{1 + \cos 2y} \over {1 - \cos 2x}}\,\,$$ i

Consider the differential equation $$\,\,{{dx} \over {dt}} = 10 - 0.2\,x$$ with initial condition $$x(0)=1.$$ The respo

Let $$f\left( z \right) = {{az + b} \over {cz + d}}.$$ If $$f\left( {{z_1}} \right) = f\left( {{z_2}} \right)$$ for all

If $$C$$ denotes the counter clockwise unit circle. The value of the contour integral $${1 \over {2\pi i}}\oint\limits_c

The bilateral Laplace transform of a function $$f\left( t \right) = \left\{ {\matrix{ 1 & {if\,\,a \le t \le b}

In an 8085 microprocessor, which one of the following instructions changes the content of the accumulator?

The voltage (VC) across the capacitor (in Volts) In the network shown is ________.

The 2-port admittance matrix of the circuit shown is given by

In the circuit shown, the initial voltages across the capacitors C1 and C2 are 1 V and 3 V, respectively. The switch is

In the circuit shown, the Norton equivalent resistance (in Ω) across terminals a–b is ___________.

Let x(t) = a s(t) +s(-t) with s(t) = $$\beta {e^{ - 4t}}u\left( t \right)$$, where u(t) is unit step function. If the bi

Two casual discrete-time signals $$x\left[ n \right]$$ and $$y\left[ n \right]$$ =$$\sum\limits_{m = 0}^n x \left[ m \ri

The output of a standrad second-order system for a unit step input is given as $$y(t) = 1 - {2 \over {\sqrt 3 }}{e^{ - t

Input x(t) and output y(t) of an LTI system are related by the differential equation y"(t) - y'(t) - 6y(t) = x(t). If t

The value of the integral $$\int_{ - \infty }^\infty {12\,\cos (2\pi )\,{{\sin (4\pi t)} \over {4\pi t}}\,dt\,} $$ is

The signal $$\cos \left( {10\pi t + {\pi \over 4}} \right)$$ is ideally sampled at a sampling frequency of 15 Hz. Th

The bilateral Laplace transform of a function $$f\left( t \right) = \left\{ {\matrix{ {1\,if\,a \le t \le b} \cr

Ram and Ramesh appeared in an interview for two vacancies in the same department. The probability of Ram’s selection is