1 votes
0 answers
1441
Consider the amplitude modulated (AM) signal $A_{c} \cos \omega_{c} t+2 \cos \omega_{m} t \cos \omega_{c} t$. For demodulating the signal using envelope detector, the min...
1 votes
0 answers
1442
The Thevenin equivalent impedance $\text{Z}_{\text {th }}$ between the nodes $\text{P}$ and $\text{Q}$ in the following circuit is$1$$1+s+\frac{1}{s}$$2+s+\frac{1}{s}$$\f...
1 votes
0 answers
1443
The driving point impedance of the following networkis given by $Z(s)=\frac{0.2 s}{s^{2}+0.1 s+2}$. The component values are$\begin{array}{lll} \mathrm{L}=5 \mathrm{~H}, ...
1 votes
0 answers
1444
The circuit shown in the figure is used to charge the capacitor $\mathrm{C}$ alternately from two current sources as indicated. The switches $\text{S1}$ and $\text{S2}$ a...
1 votes
0 answers
1445
The probability density function (PDF) of a random variable $\mathrm{X}$ is as shown below.The corresponding cumulative distribution function (CDF) has the form
1 votes
0 answers
1446
The recursion relation to solve $x=e^{-x}$ using Newton-Raphson method is$x_{n+1}=e^{-x_{n}}$$x_{n+1}=x_{n}-e^{-x_{n}}$$x_{n+1}=\left(1+x_{n}\right) \frac{e^{-x_{n}}}{1+e...
1 votes
0 answers
1447
The residue of the function $f(z)=\dfrac{1}{(z+2)^{2}(z-2)^{2}}$ at $z=2$ is$-\;\frac{1}{32}$$-\;\frac{1}{16}$$\frac{1}{16}$$\frac{1}{32}$
1 votes
0 answers
1448
Consider the matrix $\mathbf{P}=\left[\begin{array}{cc}0 & 1 \\ -2 & -3\end{array}\right]$. The value of $\mathbf{e}^{\mathbf{P}}$ is$\left[\begin{array}{cc}2 e^{-2}-3 e^...
1 votes
2 answers
1449
In the Taylor series expansion of $\exp (x)+\sin (x)$ about the point $x=\pi$, the coefficient of $(x-\pi)^{2}$ is$\exp (\pi)$$0.5 \exp (\pi)$$\exp (\pi)+1$$\exp (\pi)-1$...
1 votes
0 answers
1450
1 votes
0 answers
1451
The value of the integral of the function $g(x, y)=4 x^{3}+10 y^{4}$ along the straight line segment from the point $(0,0)$ to the point $(1,2)$ in the $x\text{-}y$ plane...
1 votes
0 answers
1453
1 votes
0 answers
1457
A memoryless source emits $n$ symbols each with a probability $p$. The entropy of the source as a function of $n$increases as $\log n$decreases as $\log (1 / n)$increases...
1 votes
0 answers
1461
A signal flow graph of a system is given below.The set of equations that correspond to this signal flow graph is$\dfrac{d}{d t}\left(\begin{array}{l}x_{1} \\ x_{2} \\ x_{...
1 votes
0 answers
1462
The number of open right half plane poles of $G(s)=\dfrac{10}{s^{5}+2 s^{4}+3 s^{3}+6 s^{2}+5 s+3}$ is$0$$1$$2$$3$
1 votes
0 answers
1464
1 votes
0 answers
1466
The measured transconductance $g_{m}$ of an $\text{NMOS}$ transistor operating in the linear region is plotted against the gate voltage $V_{G}$ at a constant drain voltag...
1 votes
0 answers
1468
The OPAMP circuit shown above represents ahigh pass filterlow pass filterband pass filterband reject filter
1 votes
0 answers
1475
The logic function implemented by the following circuit at the terminal $\text{OUT}$ is$\text{P NOR Q}$$\text{P NAND Q}$$\text{P OR Q}$$\text{P AND Q}$
1 votes
0 answers
1477
1 votes
0 answers
1478
1 votes
0 answers
1479
For the circuit shown in the following figure, $\mathrm{I}_{0}\text{-}\mathrm{I}_{3}$ are inputs to the $4: 1$ multiplexer. $\mathrm{R~(MSB)}$ and $\mathrm{S}$ are contro...
1 votes
0 answers
1480
For each of the positive edge-triggered $\text{J-K}$ flip flop used in the following figure, the propagation delay is $\Delta T$.Which of the following waveforms correctl...