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0 0 votes
0 0 answers
382
382 views
The longest wavelength that can be absorbed by silicon, which has the bandgap of $1.12 \; \mathrm{eV}$, is $1$. If the longest wavelength that can be absorbed by another ...
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0 0 answers
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20 views
1 1 vote
2 2 answers
6.1k
6.1k views
Figure Ⅰ shows a $4$-bit ripple carry adder realized using full adders and Figure Ⅱ shows the circuit of a full-adder (FA). The propagation delay of the XOR, AND and OR g...
2 2 votes
1 1 answer
683
683 views
A function $f(x)=1-x^2+x^3$ is defined in the closed interval $[-1,1]$. The value of $x$, in the open interval $(-1,1)$ for which the mean value theorem is satisfied, is$...
1 1 vote
1 1 answer
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The given figure shows a ripple counter using positive edge triggered flip-flops. If the present state of the counter is $Q_{2}Q_{1}Q_{0}=011$, then its next state $\left...
3 3 votes
1 1 answer
1.6k
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A $3$-input majority gate is defined by the logic function $M(a,b,c)=ab+bc+ca$. Which one of the following gates is represented by the function $M(\overline{M(a,b,c)}, M(...
3 3 votes
1 1 answer
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For the output $\text{F}$ to be $1$ in the logic circuit shown, the input combination should be$\mathrm{A}=1, \mathrm{~B}=1, \mathrm{C}=0$$\text{A = 1, B = 0, C = 0}$$\ma...
1 1 vote
0 0 answers
398
398 views
Choose the correct one from among the alternatives $\text{A, B, C, D}$ after matching an item from Group $1$ with the most appropriate item in Group $2.$$$\begin{array}{|...
1 1 vote
0 0 answers
502
502 views
A pulse train can be delayed by a finite number of clock periods usinga serial-in serial-out shift registera serial-in parallel-out shift registera parallel-in serial-out...
1 1 vote
1 1 answer
429
429 views
A binary ripple counter is designed to count $(0)_{10}$ to $(64)_{10}$.Which of the following is/are the number of flip-flops required to design the counter?$6$$7$$4$$5$
23 23 votes
8 answers 8 answers
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The exports and imports (in crores of $Rs$.) of a country from $2000$ to $2007$ are given in the following bar chart. If the trade deficit is defined as excess of imports...
1 1 vote
0 0 answers
329
329 views
The figure shows a mod-$\mathrm{K}$ counter, here $\mathrm{K}$ is equal to$1$$2$$3$$4$
1 1 vote
0 0 answers
394
394 views
A sequence generator is shown in the figure. The counter status $\left(\mathrm{Q}_{0}, \mathrm{Q}_{1}, \mathrm{Q}_{2}\right)$ is initialised to $010$ using preset/clear i...
1 1 vote
1 1 answer
496
496 views
In a $\text{J-K}$ flip-flip we have $\text{J} = \overline{Q}$ and $\text{K}=1$. Assuming the flip-flop was initially cleared and then clocked for $6$ puleses, the sequenc...
1 1 vote
0 0 answers
450
450 views
An $\text{S-R FLIP-FLOP}$ can be converted into a $\textsf{T FLIP FLOP}$ by connecting __________ to $\mathrm{Q}$ and ___________ to $\mathrm{\overline{Q}}$.
1 1 vote
1 1 answer
2.3k
2.3k views
The number of bytes required to represent the decimal number $1856357$ in packed BCD (Binary Coded Decimal) form is ___________.
1 1 vote
0 0 answers
801
801 views
The ripple counter shown in the given figure works as a$\bmod -3$ up counter$\bmod -5$ up counter$\bmod - 3$ down counter$\bmod - 5$ down counter
6 6 votes
4 answers 4 answers
997
997 views
Find the odd one from the following group:$W,E,K,O \qquad I,Q,W,A \qquad F,N,T,X \qquad N,V,B,D$$W,E,K,O$$I,Q,W,A $$F,N,T,X $$N,V,B,D$
15 15 votes
8 answers 8 answers
1.1k
1.1k views
The number that least fits this set$:(324,441,97$ and $64)$ is$324$$441$$97$$64$
1 1 vote
0 0 answers
550
550 views
The state transition diagram for the logic circuit shown is
2 2 votes
2 2 answers
773
773 views
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
0 0 votes
2 2 answers
503
503 views
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$
6 6 votes
3 answers 3 answers
719
719 views
Find the missing sequence in the letter series below:$A, CD, GHI,?, UVWXY$$LMN$$MNO$$MNOP$$NOPQ$
1 1 vote
1 1 answer
452
452 views
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...
1 1 vote
1 1 answer
640
640 views
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]$...
1 1 vote
1 1 answer
1.9k
1.9k views
In a given sequential circuit, initial states are $Q_1=1$ and $Q_2=0$. For a clock frequency of $1 \; \mathrm{MHz}$, the frequency of signal $\mathrm{Q}_2$ in $\mathrm{kH...
1 1 vote
0 0 answers
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1.2k views
​​​​​The sequence of states $\left(Q_{1} Q_{0}\right)$ of the given synchronous sequential circuit is - $\_\_\_\_\_\_\_$.$00 \rightarrow 10 \rightarrow 11 \rightarrow 00$...
3 3 votes
1 1 answer
454
454 views
The negative edge triggered JK flip-flop in the Figure has J and K inputs tied to Logic High and a square wave of $10$ cycles/second is applied to its clock (C) input.The...
3 3 votes
1 1 answer
603
603 views
The output voltage $V_{o}$ (in Volt) for the network given in the Figure is $\_\_\_\_$ .(rounded off to two decimal places) 
6 6 votes
3 answers 3 answers
610
610 views
A firm producing air purifiers sold $200$ units in $2012$. The following pie chart presents the share of raw material, labour, energy, plant & machinery, and transportati...
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