For the DC analysis of the Common-Emitter amplifier shown, neglect the base current and assume that the emitter and coll

In the figure shown, the npn transistor acts as a switch. For the input vin(t)as shown in the figure, the transistor

The Miller effect in the context of a Common Emitter amplifier explains

For the operational amplifier circuit shown, the output saturation voltages are $$ \pm \,\,15V$$. The upper and lower th

The amplifier circuit shown in the figure is implemented using a compensated operational amplifier (op-amp), and has an

In a digital communication system, the overall pulse shape p(t) at the receiver before the sampler has the Fourier trans

Which one of the following statements about differential pulse code modulation (DPCM) is true?

Let $$X(t)$$ be a wide sense stationary random process with the power spectral density $${S_x}\left( f \right)$$ as show

In binary frequency shift keying (FSK), the given signal wave forms are $$\,{u_o}(t) = 5\,\cos \,(20000\,\pi \,t);\,0

Let $$\left( {{X_1},\,{X_2}} \right)$$ be independent random variables, $${X_1}$$ has mean 0 and variance 1, while $${X_

The open loop transfer function $$$\mathrm G\left(\mathrm s\right)\;=\;\frac{\left(\mathrm s\;+\;1\right)}{\mathrm s^\ma

Which one of the following options correctly describes the locations of the roots of the equation s4 + s2 + 1 = 0 on the

A linear time invariant (LTI) system with the transfer function $$$G\left(s\right)=\frac{K\left(s^2+2s+2\right)}{s^2-3s+

Consider a stable system with transfer function $$$G\left(s\right)=\frac{s^p+b_1s^{p-1}+....+b_p}{s^q+a_1s^{q-1}+....+a_

The Nyquist plot of the transfer function $$G(s) = {k \over {\left( {{s^2} + 2s + 2} \right)\left( {s + 2} \right)}}$$

Which of the following can be the pole-zero configuration of a phase-lag controller (lag compensator)?

Which one of the following gives the simplified sum of products expression for the Boolean function $$F = {m_0} + {m_2}

Consider the D-Latch shown in the figure, which is transparent when its clock input CK is high and has zero propagation

In the latch circuit shown, the NAND gates have non-zero, but unequal propagation delays. The present input condition is

A 4-bit shift register circuit configured for right-shift operation is $${D_{in}}\, \to \,A,\,A\, \to B,\,B \to C,\,C \t

A finite state machine (FSM) is implemented using the D flip-flops A and B and logic gates, as shown in the figure below

The voltage of an electromagnetic wave propagating in a coaxial cable with uniform characteristic impedance is $$V(l) =

The expression for an electric field in free space is $$E = {E_0}\left( {\widehat x + \widehat y + j2\widehat z} \right)

A half wavelength dipole is kept in the x-y plane and oriented along $${45^ \circ }$$ from the x-axis. Determine the dir

Consider a wireless communication link between a transmitter and a receiver located in free space, with finite and stric

An optical fiber is kept along the$$\widehat Z$$ direction. The refractive indices for the electric fields along $$\wid

A bar of Gallium Arsenide (GaAs) is doped with Silicon such that the Silicon atoms occupy Gallium and Arsenic sites in t

The dependence of drift velocity of electrons on electric field in a semiconductor is shown below. The semiconductor has

For a narrow base PNP BJT, the excess minority carrier concentration ($$\bigtriangleup n_E$$ for emitter, $$\bigtriangle

For the circuit shown, assume that the NMOS transistor is in saturation. Its threshold voltage Vtn = 1 V and its trans

The rank of the matrix $$M = \left[ {\matrix{ 5 & {10} & {10} \cr 1 & 0 & 2 \cr 3 & 6 &

Consider the $$5 \times 5$$ matrix $$A = \left[ {\matrix{ 1 & 2 & 3 & 4 & 5 \cr 5 & 1 &

Let $$\,\,f\left( x \right) = {e^{x + {x^2}}}\,\,$$ for real $$x.$$ From among the following. Choose the Taylor series a

A three dimensional region $$R$$ of finite volume is described by $$\,\,{x^2} + {y^2} \le {z^3},\,\,\,0 \le z \le 1$$ W

If the vector function $$\,\,\overrightarrow F = \widehat a{}_x\left( {3y - k{}_1z} \right) + \widehat a{}_y\left( {k{

Let $$\,\,\,{\rm I} = \int_c {\left( {2z\,dx + 2y\,dy + 2x\,dz} \right)} \,\,\,\,$$ where $$x, y, z$$ are real, and let

Three fair cubical dice are thrown simultaneously. The probability that all three dice have the same number of dots on t

Consider the following statements about the linear dependence of the real valued functions $${y_1} = 1,\,\,{y_2} = x$$ a

Which one of the following is the general solution of the first order differential equation $${{dy} \over {dx}} = {\left

Starting with $$x=1,$$ the solution of the equation $$\,{x^3} + x = 1,\,\,$$ after two iterations of Newton-Raphson's me

The clock frequency of an 8085 microprocessor is 5 MHz. If the time required to execute an instruction is 1.4 $$\mu $$s,

The following five instructions were executed on an 8085 microprocessor. MVI A, 33H MVI B, 78H ADD B CMA ANI 32H

In the circuit shown, the positive angular frequency $$\omega$$ (in radians per second) at which magnitude of the phase

In the circuit shown the voltage $${V_{IN}}\,\left( t \right)$$ is described by: $$${V_{IN}}\,\left( t \right) = \left\

The figure shows an RLC circuit excited by the sinusoidal voltage $$100cos(3t)$$ Volts, where $$t$$ is in seconds. The

A periodic signal x(t) has a trigonometric Fourier series expansion $$$x\left(t\right)=a_0\;+\;\sum_{n=1}^\infty\left(a_

Let x(t) be a continuous time periodic signal with fundamental period T = 1 seconds. Let {ak} be the complex Fourier ser

Let h[n] be the impulse response of a discrete time linear time invariant (LTI) filter. The impulse response is given by

Two discrete-time signals x [n] and h [n] are both non-zero only for n = 0, 1, 2 and are zero otherwise. It is given tha

Consider the following statements for continuous-time linear time invariant (LTI) system. I. There is no bounded input

A continuous time signal x(t) = $$4\cos (200\pi t)$$ + $$8\cos(400\pi t)$$, where t is in seconds, is the input to a lin

Consider a single input single output discrete-time system with $$h\left[ n \right]\,$$ as input and $$y\left[ n \right

In the summer, water consumption is known to decrease overall by 25%. A water Board official states that in the summer h

40% of deaths on city roads may be attributed to drunken driving. The number of degrees needed to represent this as a sl

Some tables are shelves. Some shelves are chairs. All chairs are benches. Which of the following conclusions can be dedu

S, T, U, V, W, X, Y and Z are seated around a circular table. T's neighbors are Y and V. Z is seated third to the left o

She has a sharp tongue and it can occasionally turn

There are 3 Indians and 3 Chinese in a group of 6 people. How many subgroups of this group can we choose so that every s

I ___________ made arrangements had I ___________informed earlier.

Trucks (10 m long) and cars (5 m long) go on a single lane bridge. There must be a gap of at least 20 m after each truck

A contour line joins locations having the same height above the mean sea level. The following is a contour plot of a geo

“If you are looking for a history of India, or for an account of the rise and fall of the British Raj, or for the reason