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Hot questions in Digital Circuits
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41
GATE ECE 2015 Set 2 | Question: 37
The figure shows a binary counter with synchronous clear input. With the decoding logic shown, the counter works as a mod-$2$ counter mod-$4$ counter mod-$5$ counter mod-$6$ counter
The figure shows a binary counter with synchronous clear input. With the decoding logic shown, the counter works as a mod-$2$ counter mod-$4$ counter mod-$5$ counter mod-...
Milicevic3306
16.0k
points
239
views
Milicevic3306
asked
Mar 27, 2018
Number Representations
gate2015-ec-2
digital-circuits
sequential-circuit
counters
+
–
0
votes
0
answers
42
GATE ECE 2016 Set 3 | Question: 45
For the circuit shown in the figure, the delay of the bubbled NAND gate is $2\:ns$ and that of the counter is assumed to be zero. If the clock (Clk) frequency is $1\:GHz$, then the counter behaves as a $\text{mod}-5\:\text{counter}$ $\text{mod}-6\:\text{counter}$ $\text{mod}-7\:\text{counter}$ $\text{mod}-8\:\text{counter}$
For the circuit shown in the figure, the delay of the bubbled NAND gate is $2\:ns$ and that of the counter is assumed to be zero. If the clock (Clk) frequency is $1\:GHz$...
Milicevic3306
16.0k
points
233
views
Milicevic3306
asked
Mar 27, 2018
Number Representations
gate2016-ec-3
digital-circuits
sequential-circuit
counters
+
–
0
votes
0
answers
43
GATE ECE 2016 Set 3 | Question: 44
For the circuit shown in the figure, the delays of NOR gates, multiplexers and inverters are $2$ ns, $1.5$ ns and $1$ ns, respectively. If all the inputs $P, Q, R, S$ and $T$ are applied at the same time instant, the maximum propagation delay (in ns) of the circuit is _________
For the circuit shown in the figure, the delays of NOR gates, multiplexers and inverters are $2$ ns, $1.5$ ns and $1$ ns, respectively. If all the inputs $P, Q, R, S$ and...
Milicevic3306
16.0k
points
231
views
Milicevic3306
asked
Mar 27, 2018
Number Representations
gate2016-ec-3
numerical-answers
digital-circuits
combinational-circuits
logic-gates
+
–
0
votes
0
answers
44
GATE ECE 2016 Set 2 | Question: 43
In an $N$ bit flash ADC, the analog voltage is fed simultaneously to $2^{N}-1$ comparators. The output of the comparators is then encoded to a binary format using digital circuits. Assume that the analog voltage source $V_{in}$ ... maximum sampling rate? $1$ megasamples per second $6$ megasamples per second $64$ megasamples per second $256$ megasamples per second
In an $N$ bit flash ADC, the analog voltage is fed simultaneously to $2^{N}-1$ comparators. The output of the comparators is then encoded to a binary format using digita...
Milicevic3306
16.0k
points
227
views
Milicevic3306
asked
Mar 27, 2018
Number Representations
gate2016-ec-2
digital-circuits
analog-to-digital-converter
+
–
1
votes
0
answers
45
GATE ECE 2015 Set 2 | Question: 14
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, OR OR, NAND NAND, OR AND,NAND
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,NA...
Milicevic3306
16.0k
points
169
views
Milicevic3306
asked
Mar 27, 2018
Number Representations
gate2015-ec-2
digital-circuits
combinational-circuits
logic-gates
+
–
0
votes
0
answers
46
GATE ECE 2015 Set 3 | Question: 15
In the circuit shown, diodes $D_{1}, D_{2}$ and $D_{3}$ are ideal, and the inputs $E_{1} , E_{2}$ and $E_{3}$ are $“0\: V”$ for logic $‘0’$ and $“10\: V”$ for logic $‘1’$. What logic gate does the circuit represent? $3$-input OR gate $3$-input NOR gate $3$-input AND gate $3$-input XOR gate
In the circuit shown, diodes $D_{1}, D_{2}$ and $D_{3}$ are ideal, and the inputs $E_{1} , E_{2}$ and $E_{3}$ are $“0\: V”$ for logic $‘0’$ and $“10\: V”$ for...
Milicevic3306
16.0k
points
201
views
Milicevic3306
asked
Mar 27, 2018
Number Representations
gate2015-ec-3
digital-circuits
combinational-circuits
logic-gates
+
–
0
votes
0
answers
47
GATE ECE 2016 Set 3 | Question: 17
The logic functionality realized by the circuit shown below is $OR$ $XOR$ $NAND$ $AND$
The logic functionality realized by the circuit shown below is $OR$$XOR$$NAND$$AND$
Milicevic3306
16.0k
points
197
views
Milicevic3306
asked
Mar 27, 2018
Number Representations
gate2016-ec-3
digital-circuits
combinational-circuits
logic-gates
+
–
0
votes
0
answers
48
GATE ECE 2015 Set 3 | Question: 38
An SR latch is implemented using TTL gates as shown in the figure. The set and reset pulse inputs are provided using the push-button switches. It is observed that the circuit fails to work as desired. The SR latch can be made functional by changing NOR gates to NAND gates inverters to buffers NOR gates to NAND gates and inverters to buffers $5\: V$ to ground
An SR latch is implemented using TTL gates as shown in the figure. The set and reset pulse inputs are provided using the push-button switches. It is observed that the cir...
Milicevic3306
16.0k
points
197
views
Milicevic3306
asked
Mar 27, 2018
Number Representations
gate2015-ec-3
digital-circuits
sequential-circuit
flip-flops
+
–
1
votes
0
answers
49
GATE ECE 2015 Set 2 | Question: 36
A function of Boolean variables $X, Y$ and $Z$ is expressed in terms of the min-terms as $F(X, Y, Z) = \Sigma (1, 2, 5, 6, 7)$ Which one of the product of sums given below is equal to the function $F(X, Y, Z)?$ ...
A function of Boolean variables $X, Y$ and $Z$ is expressed in terms of the min-terms as $$F(X, Y, Z) = \Sigma (1, 2, 5, 6, 7)$$Which one of the product of sums given bel...
Milicevic3306
16.0k
points
148
views
Milicevic3306
asked
Mar 27, 2018
Digital Circuits
gate2015-ec-2
digital-circuits
boolean-algebra
+
–
0
votes
0
answers
50
GATE ECE 2016 Set 3 | Question: 10
The $I-V$ characteristics of three types of diodes at the room temperature, made of semiconductors $X, Y$ and $Z$, are shown in the figure. Assume that the diodes are uniformly doped and identical in all respects except their materials. If $E_{gX}$,$E_{gY}$ ... $E_{gX}=E_{gY}=E_{gZ}$ $E_{gX}<E_{gY}<E_{gZ}$ no relationship among these band gaps exists.
The $I-V$ characteristics of three types of diodes at the room temperature, made of semiconductors $X, Y$ and $Z$, are shown in the figure. Assume that the diodes are uni...
Milicevic3306
16.0k
points
179
views
Milicevic3306
asked
Mar 27, 2018
Number Representations
gate2016-ec-3
digital-circuits
semiconductor
+
–
0
votes
0
answers
51
GATE ECE 2015 Set 2 | Question: 38
A $1$-to-$8$ demultiplexer with data input $D_{in}$ , address inputs $S_{0}, S_{1}, S_{2}$ (with $S_{0}$ as the LSB) and $\overline{Y_{0}}$ to $\overline{Y_{7}}$ as the eight demultiplexed outputs, is to be designed using two $2$-to-$4$ ... $D_{in}, S_{0}, S_{1}, S_{2} $ $D_{in}, S_{2}, S_{0}, S_{1}$
A $1$-to-$8$ demultiplexer with data input $D_{in}$ , address inputs $S_{0}, S_{1}, S_{2}$ (with $S_{0}$ as the LSB) and $\overline{Y_{0}}$ to $\overline{Y_{7}}$ as the e...
Milicevic3306
16.0k
points
174
views
Milicevic3306
asked
Mar 27, 2018
Digital Circuits
gate2015-ec-2
digital-circuits
combinational-circuits
decoders
+
–
0
votes
0
answers
52
GATE ECE 2016 Set 1 | Question: 12
Consider the following statements for a metal oxide semiconductor field effect transistor (MOSFET): As channel length reduces,OFF-state current increases. As channel length reduces,output resistance increases. As channel length reduces,threshold voltage remains constant. As channel ... . Which of the above statements are INCORRECT? P and Q P and S Q and R R and S
Consider the following statements for a metal oxide semiconductor field effect transistor (MOSFET):As channel length reduces,OFF-state current increases.As channel length...
Milicevic3306
16.0k
points
173
views
Milicevic3306
asked
Mar 27, 2018
Digital Circuits
gate2016-ec-1
digital-circuits
semiconductor
mosfet
+
–
0
votes
0
answers
53
GATE ECE 2014 Set 1 | Question: 16
Five JK flip-flops are cascaded to form the circuit shown in Figure. Clock pulses at a frequency of $1\: MHz$ are applied as shown. The frequency $(\text{in}\:kHz)$ of the waveform at $Q3$ is ________.
Five JK flip-flops are cascaded to form the circuit shown in Figure. Clock pulses at a frequency of $1\: MHz$ are applied as shown. The frequency $(\text{in}\:kHz)$ of th...
Milicevic3306
16.0k
points
250
views
Milicevic3306
asked
Mar 25, 2018
Number Representations
gate2014-ec-1
numerical-answers
flip-flops
digital-circuits
+
–
1
votes
0
answers
54
GATE ECE 2014 Set 3 | Question: 41
In the circuit shown, $W$ and $Y$ are MSBs of the control inputs. The output $F$ is given by $F= W\overline{X}+\overline{W}X+\overline{Y}\overline{Z}$ $F= W\overline{X}+\overline{W}X+\overline{Y}Z$ $F= W\overline{X}\overline{Y}+\overline{W}X\overline{Y}$ $F= ( \overline{W}+\overline{X} )\overline{Y}\overline{Z}$
In the circuit shown, $W$ and $Y$ are MSBs of the control inputs. The output $F$ is given by$F= W\overline{X}+\overline{W}X+\overline{Y}\overline{Z}$$F= W\overline{X}+\ov...
Milicevic3306
16.0k
points
206
views
Milicevic3306
asked
Mar 26, 2018
Number Representations
gate2014-ec-3
digital-circuits
combinational-circuits
multiplexers
+
–
0
votes
0
answers
55
GATE ECE 2016 Set 1 | Question: 11
A small percentage of impurity is added to an intrinsic semiconductor at $300 \: K$. Which one of the following statements is true for the energy band diagram shown in the following figure? Intrinsic semiconductor doped with pentavalent ... atoms to form $p$-type semiconductor. Intrinsic semiconductor doped with trivalent atoms to form $p$-type semiconductor.
A small percentage of impurity is added to an intrinsic semiconductor at $300 \: K$. Which one of the following statements is true for the energy band diagram shown in th...
Milicevic3306
16.0k
points
158
views
Milicevic3306
asked
Mar 27, 2018
Number Representations
gate2016-ec-1
digital-circuits
semiconductor
+
–
2
votes
0
answers
56
GATE ECE 2014 Set 1 | Question: 40
The output $F$ in the digital logic circuit shown in the figure is $F = \overline{X}\:Y\:Z + X\:\overline{Y}\:Z$ $F = \overline{X}\:Y\:\overline{Z} + X\:\overline{Y}\:\overline{Z}$ $F = \overline{X}\:\overline{Y}\:Z + X\:Y\:Z$ $F = \overline{X}\:\overline{Y}\:\overline{Z} + X\:Y\:Z$
The output $F$ in the digital logic circuit shown in the figure is$F = \overline{X}\:Y\:Z + X\:\overline{Y}\:Z$$F = \overline{X}\:Y\:\overline{Z} + X\:\overline{Y}\:\over...
Milicevic3306
16.0k
points
156
views
Milicevic3306
asked
Mar 25, 2018
Combinational Circuits
gate2014-ec-1
digital-circuits
combinational-circuits
logic-gates
+
–
0
votes
0
answers
57
GATE ECE 2013 | Question: 45
There are four chips each of $1024\:\text{bytes}$ connected to a $16\:\text{bit}$ address bus as shown in the figure below. $RAMs\: 1, 2, 3$ and $4$ ... $0500H-08FFH, 1500H-18FFH, 3500H-38FFH, 5500H-58FFH$ $0800H-0BFFH, 1800H-1BFFH, 2800H-2BFFH, 3800H-3BFFH$
There are four chips each of $1024\:\text{bytes}$ connected to a $16\:\text{bit}$ address bus as shown in the figure below. $RAMs\: 1, 2, 3$ and $4$ respectively are mapp...
Milicevic3306
16.0k
points
229
views
Milicevic3306
asked
Mar 25, 2018
Digital Circuits
gate2013-ec
digital-circuits
semiconductor
ram
+
–
1
votes
0
answers
58
GATE ECE 2015 Set 1 | Question: 36
The Boolean expression $F(X,Y,Z) = \overline{X} \: Y \: \overline{Z}+ X \: \overline{Y} \: \overline{Z}+ X \: Y \: \overline{Z} + X \: Y \: Z$ ... $(X+\overline{Y}+\overline{Z})(\overline{X}+Y+Z)(\overline{X}+\overline{Y}+Z)(X + Y + Z)$
The Boolean expression $F(X,Y,Z) = \overline{X} \: Y \: \overline{Z}+ X \: \overline{Y} \: \overline{Z}+ X \: Y \: \overline{Z} + X \: Y \: Z$ converted into the canonica...
Milicevic3306
16.0k
points
104
views
Milicevic3306
asked
Mar 27, 2018
Digital Circuits
gate2015-ec-1
boolean-algebra
digital-circuits
+
–
0
votes
0
answers
59
GATE ECE 2015 Set 2 | Question: 15
In an $8085$ microprocessor, which one of the following instructions changes the content of the accumulator? MOV B, M PCHL RNZ SBI BEH
In an $8085$ microprocessor, which one of the following instructions changes the content of the accumulator?MOV B, MPCHLRNZSBI BEH
Milicevic3306
16.0k
points
142
views
Milicevic3306
asked
Mar 27, 2018
Digital Circuits
gate2015-ec-2
digital-circuits
microprocessor-8085
+
–
0
votes
0
answers
60
GATE ECE 2016 Set 2 | Question: 18
A $4:1$ multiplexer is to be used for generating the output carry of a full adder. $A$ and $B$ are the bits to be added while $C_{in}$ is the input carry and $C_{out}$ is the output carry. $A$ and $B$ are to be used as the select bits with $A$ being the more significant select ... $I_{3}=C_{in}$ $I_{0}=0, I_{1}=C_{in},I_{2}=1$ and $I_{3}=C_{in}$
A $4:1$ multiplexer is to be used for generating the output carry of a full adder. $A$ and $B$ are the bits to be added while $C_{in}$ is the input carry and $C_{out}$ is...
Milicevic3306
16.0k
points
139
views
Milicevic3306
asked
Mar 27, 2018
Number Representations
gate2016-ec-2
digital-circuits
combinational-circuits
multiplexers
+
–
0
votes
0
answers
61
GATE ECE 2016 Set 3 | Question: 18
The minimum number of $2$-input $NAND$ gates required to implement a $2$-input $XOR$ gate is $4$ $5$ $6$ $7$
The minimum number of $2$-input $NAND$ gates required to implement a $2$-input $XOR$ gate is$4$$5$$6$$7$
Milicevic3306
16.0k
points
136
views
Milicevic3306
asked
Mar 27, 2018
Digital Circuits
gate2016-ec-3
digital-circuits
combinational-circuits
logic-gates
+
–
0
votes
0
answers
62
GATE ECE 2015 Set 1 | Question: 15
A $16$ Kb ($=16,384$ bits) memory array is designed as a square with an aspect ratio of one (number of rows is equal to the number of columns). The minimum number of address lines needed for the row decoder is ___________
A $16$ Kb ($=16,384$ bits) memory array is designed as a square with an aspect ratio of one (number of rows is equal to the number of columns). The minimum number of addr...
Milicevic3306
16.0k
points
137
views
Milicevic3306
asked
Mar 27, 2018
Digital Circuits
gate2015-ec-1
numerical-answers
digital-circuits
decoders
+
–
0
votes
0
answers
63
GATE ECE 2016 Set 3 | Question: 16
In an $8085$ microprocessor, the contents of the accumulator and the carry flag are $A7$ (in hex) and $0$, respectively. If the instruction $RLC$ is executed, then the contents of the accumulator (in hex) and the carry flag, respectively, will be $4E$ and $0$ $4E$ and $1$ $4F$ and $0$ $4F$ and $1$
In an $8085$ microprocessor, the contents of the accumulator and the carry flag are $A7$ (in hex) and $0$, respectively. If the instruction $RLC$ is executed, then the co...
Milicevic3306
16.0k
points
132
views
Milicevic3306
asked
Mar 27, 2018
Digital Circuits
gate2016-ec-3
digital-circuits
microprocessor-8085
+
–
0
votes
0
answers
64
GATE ECE 2015 Set 1 | Question: 16
Consider a four bit $D$ to $A$ converter. The analog value corresponding to digital signals of values $0000$ and $0001$ are $0$ V and $0.0625$ V respectively. The analog value (in Volts) corresponding to the digital signal $1111$ is _________
Consider a four bit $D$ to $A$ converter. The analog value corresponding to digital signals of values $0000$ and $0001$ are $0$ V and $0.0625$ V respectively. The analog ...
Milicevic3306
16.0k
points
132
views
Milicevic3306
asked
Mar 27, 2018
Digital Circuits
gate2015-ec-1
numerical-answers
digital-circuits
+
–
0
votes
0
answers
65
GATE ECE 2014 Set 3 | Question: 15
The circuit shown in the figure is a Toggle Flip Flop JK Flip Flop SR Latch Master-Slave D Flip Flop
The circuit shown in the figure is a Toggle Flip FlopJK Flip FlopSR LatchMaster-Slave D Flip Flop
Milicevic3306
16.0k
points
201
views
Milicevic3306
asked
Mar 26, 2018
Number Representations
gate2014-ec-3
digital-circuits
sequential-circuit
flip-flops
+
–
1
votes
0
answers
66
GATE ECE 2014 Set 3 | Question: 42
If $X$ and $Y$ are inputs and the Difference $(D=X-Y)$ and the Borrow $(B)$ are the outputs, which one of the following diagrams implements a half-subtractor?
If $X$ and $Y$ are inputs and the Difference $(D=X-Y)$ and the Borrow $(B)$ are the outputs, which one of the following diagrams implements a half-subtractor?
Milicevic3306
16.0k
points
160
views
Milicevic3306
asked
Mar 26, 2018
Number Representations
gate2014-ec-3
digital-circuits
combinational-circuits
half-subtractor-circuit
multiplexers
+
–
1
votes
0
answers
67
GATE ECE 2014 Set 4 | Question: 15
In the circuit shown in the figure, if $C=0$, the expression for $Y$ is $Y=A \overline{B} + \overline{A}B$ $Y=A+B$ $Y=\overline{A} + \overline{B}$ $Y=A \: B$
In the circuit shown in the figure, if $C=0$, the expression for $Y$ is$Y=A \overline{B} + \overline{A}B$$Y=A+B$$Y=\overline{A} + \overline{B}$$Y=A \: B$
Milicevic3306
16.0k
points
153
views
Milicevic3306
asked
Mar 26, 2018
Digital Circuits
gate2014-ec-4
digital-circuits
combinational-circuits
logic-gates
+
–
0
votes
0
answers
68
GATE ECE 2015 Set 1 | Question: 14
In an 8085 microprocessor, the shift registers which store the result of an addition and the overflow bit are, respectively B and F A and F H and F A and C
In an 8085 microprocessor, the shift registers which store the result of an addition and the overflow bit are, respectivelyB and FA and FH and FA and C
Milicevic3306
16.0k
points
113
views
Milicevic3306
asked
Mar 27, 2018
Digital Circuits
gate2015-ec-1
digital-circuits
microprocessor-8085
+
–
0
votes
0
answers
69
GATE ECE 2015 Set 3 | Question: 16
Which one of the following $8085$ microprocessor programs correctly calculates the product of two $8$-bit numbers stored in registers $B$ and $C?$ ...
Which one of the following $8085$ microprocessor programs correctly calculates the product of two $8$-bit numbers stored in registers $B$ and $C?$$\begin{array}{ll} {} & ...
Milicevic3306
16.0k
points
110
views
Milicevic3306
asked
Mar 27, 2018
Digital Circuits
gate2015-ec-3
digital-circuits
microprocessor-8085
+
–
0
votes
0
answers
70
GATE ECE 2016 Set 2 | Question: 42
An $8$ Kbyte ROM with an active low Chip Select input $\left (\overline{CS}\right )$ is to be used in an $8085$ microprocessor based system. The ROM should occupy the address range $1000H$ to $2FFFH$. The address lines are designated as $A_{15}$ to $A_{0}$, ... $\overline{A_{15}}+ \overline{A_{14}}+A_{13} \cdot A_{12}$
An $8$ Kbyte ROM with an active low Chip Select input $\left (\overline{CS}\right )$ is to be used in an $8085$ microprocessor based system. The ROM should occupy the add...
Milicevic3306
16.0k
points
100
views
Milicevic3306
asked
Mar 27, 2018
Digital Circuits
gate2016-ec-2
digital-circuits
microprocessor
rom
+
–
0
votes
0
answers
71
GATE ECE 2014 Set 3 | Question: 54
A region shown below contains a perfect conducting half-space and air. The surface current $\overrightarrow{K_{s}}$ on the surface of the perfect conductor is $\overrightarrow{K_{s}}= \hat{x}2$ amperes per meter. The tangential $\overrightarrow{H}$ field in the ... per meter $\hat{x}2$ amperes per meter $-\hat{z}2$ amperes per meter $\hat{z}2$ amperes per meter
A region shown below contains a perfect conducting half-space and air. The surface current $\overrightarrow{K_{s}}$ on the surface of the perfect conductor is $\overright...
Milicevic3306
16.0k
points
179
views
Milicevic3306
asked
Mar 26, 2018
Number Representations
gate2014-ec-3
digital-circuits
+
–
0
votes
0
answers
72
GATE ECE 2016 Set 1 | Question: 44
In an $8085$ system, a PUSH operation requires more clock cycles than a POP operation. Which one of the following options is the correct reason for this? For POP, the data transceivers remain in the same direction as for instruction fetch ... in the stack pointer. Order of registers has to be interchanged for a PUSH operation, whereas POP uses their natural order.
In an $8085$ system, a PUSH operation requires more clock cycles than a POP operation. Which one of the following options is the correct reason for this?For POP, the data...
Milicevic3306
16.0k
points
100
views
Milicevic3306
asked
Mar 27, 2018
Digital Circuits
gate2016-ec-1
digital-circuits
microprocessor-8085
+
–
1
votes
0
answers
73
GATE ECE 2012 | Question: 19
In the sum of products function $f(X,Y,Z)=\sum(2,3,4,5)$, the prime implicants are $\overline{X}Y,X\overline{Y}$ $\overline{X}Y,X\overline{Y}\;\overline{Z},X\overline{Y}Z$ $\overline{X}Y\overline{Z},\overline{X}YZ,X\overline{Y}$ $\overline{X}Y\overline{Z},\overline{X}YZ,X\overline{Y}\;\overline{Z},X\overline{Y}Z$
In the sum of products function $f(X,Y,Z)=\sum(2,3,4,5)$, the prime implicants are$\overline{X}Y,X\overline{Y}$$\overline{X}Y,X\overline{Y}\;\overline{Z},X\overline{Y}Z$$...
Milicevic3306
16.0k
points
158
views
Milicevic3306
asked
Mar 25, 2018
Number Representations
gate2012-ec
digital-circuits
boolean-algebra
+
–
0
votes
0
answers
74
GATE ECE 2014 Set 2 | Question: 42
For the $8085$ microprocessor, the interfacing circuit to input $8$-bit digital data $( DI_{0}-DI_{7})$ from an external device is shown in the figure. The instruction for correct data transfer is $\text{MVI A, F8H}$ $\text{IN F8H}$ $\text{OUT F8H}$ $\text{LDA F8F8H}$
For the $8085$ microprocessor, the interfacing circuit to input $8$-bit digital data $( DI_{0}-DI_{7})$ from an external device is shown in the figure. The instruction fo...
Milicevic3306
16.0k
points
170
views
Milicevic3306
asked
Mar 26, 2018
Digital Circuits
gate2014-ec-2
digital-circuits
combinational-circuits
microprocessor-8085
+
–
0
votes
0
answers
75
GATE ECE 2015 Set 3 | Question: 49
Two sequences $x_{1}[n]$ and $x_{2}[n]$ have the same energy. Suppose $x_{1}[n]=\alpha\: 0.5 ^{n}\:u[n],$ where $\alpha$ is a positive real number and $u[n]$is the unit step sequence. Assume ݊$x_{2}[n]= \begin{cases} \sqrt{1.5}& \text{for } n = 0,1 \\ 0 &\text{otherwise.} \end{cases}$ Then the value of $\alpha$ is _________.
Two sequences $x_{1}[n]$ and $x_{2}[n]$ have the same energy. Suppose $x_{1}[n]=\alpha\: 0.5 ^{n}\:u[n],$ where $\alpha$ is a positive real number and $u[n]$is the unit s...
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Digital Circuits
gate2015-ec-3
numerical-answers
digital-circuits
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76
GATE ECE 2014 Set 2 | Question: 41
The outputs of the two flip-flops $Q1$, $Q2$ in the figure shown are initialized to $0,0$. The sequence generated at $Q1$ upon application of clock signal is $01110 \dots$ $01010\dots$ $00110\dots$ $01100\dots$
The outputs of the two flip-flops $Q1$, $Q2$ in the figure shown are initialized to $0,0$. The sequence generated at $Q1$ upon application of clock signal is $01110 \dots...
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Mar 26, 2018
Combinational Circuits
gate2014-ec-2
digital-circuits
sequential-circuit
flip-flops
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0
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0
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77
GATE ECE 2014 Set 2 | Question: 16
In a half-subtractor circuit with $X$ and $Y$ as inputs, the Borrow $(M)$ and Difference $(N = X – Y)$ are given by $M = X \oplus Y, \: \: \: N = XY$ $M = XY, \: \: \:N = X \oplus Y$ $M = \overline{ X}Y, \: \: \: N =X \oplus Y$ $M = X \overline{ Y}, \: \: \: N = \overline{X \oplus Y}$
In a half-subtractor circuit with $X$ and $Y$ as inputs, the Borrow $(M)$ and Difference $(N = X – Y)$ are given by$M = X \oplus Y, \: \: \: N = XY$$M = XY, \: \: \:N ...
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16.0k
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151
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Mar 26, 2018
Digital Circuits
gate2014-ec-2
digital-circuits
combinational-circuits
half-subtractor-circuit
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0
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0
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78
GATE ECE 2014 Set 4 | Question: 16
The output $(Y)$ of the circuit shown in the figure is $\overline{A} + \overline{B} +C$ $A + \overline{B} \cdot \overline{C} + A \cdot \overline{C}$ $\overline{A} +B+\overline{C}$ $A \cdot B \cdot \overline{C}$
The output $(Y)$ of the circuit shown in the figure is$\overline{A} + \overline{B} +C$$A + \overline{B} \cdot \overline{C} + A \cdot \overline{C}$$\overline{A} +B+\overli...
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Digital Circuits
gate2014-ec-4
digital-circuits
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79
GATE ECE 2014 Set 3 | Question: 40
If WL is the Word Line and BL the Bit Line, an SRAM cell is shown in
If WL is the Word Line and BL the Bit Line, an SRAM cell is shown in
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Mar 26, 2018
Digital Circuits
gate2014-ec-3
digital-circuits
sram
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0
votes
0
answers
80
GATE ECE 2012 | Question: 6
Consider the given circuit. In the circuit, the race around does not occur occurs when $\text{CLK}=0$ occurs when $\text{CLK}=1$ and $A=B=1$ occurs when $\text{CLK}=1$ and $A=B=0$
Consider the given circuit.In the circuit, the race arounddoes not occuroccurs when $\text{CLK}=0$occurs when $\text{CLK}=1$ and $A=B=1$occurs when $\text{CLK}=1$ and $A=...
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153
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Mar 25, 2018
Number Representations
gate2012-ec
digital-circuits
sequential-circuit
flip-flop
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