Recent questions and answers

In the figure shown, the output ܻ$Y = AB + \overline{C}\:\:\overline{D}$ is required to be ܻ The gates $G1$ and $G2$ must be, respectively,NOR, OROR, NANDNAND, ORAND,NAND

Let $P_{k}$ represent the perimeter of a square with sides of length $k$. The value of the expression $P_{1}+P_{2}+P_{3}+\cdots+P_{10}$ is $\_\_\_\_$$55$$110$$220$$440$

There are two candidates $\mathrm{P}$ and $\mathrm{Q}$ in an election. During the campaign, $40 \%$ of the voters promised to vote for $\mathrm{P}$, and rest for $\text{Q...

The sum of $n$ terms of the series $4+44+444+\ldots .$ is $(4 / 81)\left[10^{n+1}-9 n-1\right]$$(4 / 81)\left[10^{n-1}-9 n-1\right]$$(4 / 81)\left[10^{n+1}-9 n-10\right]$...

The output voltage $V_{o}$ (in Volt) for the network given in the Figure is $\_\_\_\_$ .(rounded off to two decimal places) 

Statement for Linked Answer Questions $82a$ and $82b:$The dopen loop transfer function of a unity feedback system is given by\[\mathrm{G}(s)=\frac{3 e^{-2}}{s(s+2)}\]Base...

The asymptotic magnitude Bode plot of a minimum phase system is shown in thefigure. The transfer function of the system is $(s)=\frac{k(s+z)^{a}}{s^{b}(s+p)^{c}}$, where ...

In a class of $100$ students,there are $30$ students who neither like romantic movies nor comedy movies,the number of students who like romantic movies is twice the numbe...

Consider an ideal OP-AMP circuit as shown in the Figure.The resistances $R_{1}=R_{2}=R_{3}=R_{4}=50 \mathrm{~k} \Omega$.The magnitude of the closed loop gain is $\_\_\_\_...

A circuit using an ideal $\text{OP-AMP}$ is shown in the Figure.Which of the following options gives the correct value of the current $I_{X}$?$2.0$ mA$1.5$ mA$3.0$ mA$0$ ...

The ideal $\text{OP-AMP}$ circuit shown in the Figure produces output voltage $V_{o}=x$ when the Switch, $\text{S}$, is open.Which of the options represents the output vo...

The two numbers represented in signed $2\text{'s}$ complement form are $\mathrm{P}=11101101$ and $\mathrm{Q}=11100110$. If $\mathrm{Q}$ is subtracted from $\mathrm{P}$, t...

Two $2^{\prime}$ 's complement number having sign bits $x$ and $y$ are added and the sign bit of the result is $z$. Then, the occurrence of overflow is indicated by the B...

An equivalent $2^{\prime} s$ complement representation of the $2$'s complement number $1101$ is$110100$$001101$$110111$$111101$

In the circuit shown in the Figure, $A$ and $B$ are logic inputs and $Y$ is the logic output.Which of the following logic operations is realized by the circuit?NORORXORAN...

In a $\text{J-K}$ flip-flip we have $\text{J=Q}$ and $\text{K}=1$. Assuming the flip flop was initially cleared and then clocked for $6$ puleses, the sequence at the $\te...

The address of the first location of a $256$ kilo byte $(\mathrm{KB})$ memory is $(2500)_{\mathrm{H}}$.Choose the correct address of the last location of the memory.$(2 \...

Had I learnt acting as a child, I _________ a famous film star.Select the most appropriate option to complete the above sentence.will becan beam going to becould have bee...

​​​​​The propagation delay of the $2 \times 1$ MUX shown in the circuit is $10 \mathrm{~ns}$. Consider the propagation delay of the inverter as $0 \mathrm{~ns}$.If $\text...

The diode in the circuit shown below is ideal. The input voltage (in Volts) is given by $V_{I}=10 \sin 100 \pi t$, where time $t$ is in seconds.The time duration (in $\ma...

An op-amp based circuit is implemented as shown below. In the above circuit, assume the op-amp to be ideal. The voltage (in volt...

In the circuit shown the op-amp has finite input impedance, infinite voltage gain, and zero input offset voltage. The output voltage $V_{out}$ is $-I_{2}(R_{1} + R_{2})$$...

Assuming the $\text{OP-AMP}$ to be ideal. the voltage gain of the amplifier shown below is$-\frac{\mathrm{R}_2}{\mathrm{R}_1}$$-\frac{\mathrm{R}_3}{\mathrm{R}_1}$$-\left(...

The effective channel length of a MOSFET in saturation decreases with increase ingate voltagedrain voltagesource voltagebody voltage

The Laplace Transform of the signal $x(t)=u(t-2) *(t u(t))$ is given by which of the following expressions?["*" represents convolution operator]$\dfrac{e^{-2 s}}{s^{2}(s-...

Consider the system shown in the figure is. Determine the value of a such that the damping ratio is $0.5$. Also obtain the values of the rise time $t_{r}$ and maximum ove...

If the Laplace transform of a signal $y(t)$ is $Y(s)=\dfrac{1}{s(s-1)},$ then its final value is$-1$$0$$1$Unbounded

The open loop transfer function of a feedback control system is:$$ G(s) H(s)=\frac{1}{(s+1)^3} $$The gain margin of the system is:$2$$4$$8$$16$

Step responses of a set of three second-order underdamped systems all have the same percentage overshoot. Which of the following diagrams represents the poles of the thre...

A certain system has transfer function $G(s)=\dfrac{s+8}{s^{2}+\alpha s-4}$, where $\alpha$ is a parameter. Consider the standard negative unity feedback configuration as...

Identify the option that has the most appropriate sequence such that a coherent paragraph is formed:Over time, such adaptations lead to significant evolutionary changes w...

Consider the circuit shown in the Figure, where the input $v_{i}(t)$ is in Volt.The average power (in $\text{mW}$ ) dissipated in the load resistance of $1 ~\mathrm{k} \O...

Consider the circuit shown in the Figure with $V_{i}=3 \mathrm{~V}$ and $V_{C C}=12 \mathrm{~V}$.Assume $V_{B E}=0.7 \mathrm{~V}$ and $\beta_{d c}=99$ for the BJT.Which o...