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Most viewed questions in Digital Circuits
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81
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$$7$
Milicevic3306
16.0k
points
117
views
Milicevic3306
asked
Mar 27, 2018
Digital Circuits
gate2016-ec-3
digital-circuits
combinational-circuits
logic-gates
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–
0
votes
0
answers
82
GATE ECE 2015 Set 1 | Question: 15
A $16$ Kb ($=16,384$ bits) memory array is designed as a square with an aspect ratio of one (number of rows is equal to the number of columns). The minimum number of address lines needed for the row decoder is ___________
A $16$ Kb ($=16,384$ bits) memory array is designed as a square with an aspect ratio of one (number of rows is equal to the number of columns). The minimum number of addr...
Milicevic3306
16.0k
points
117
views
Milicevic3306
asked
Mar 27, 2018
Digital Circuits
gate2015-ec-1
numerical-answers
digital-circuits
decoders
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–
0
votes
0
answers
83
GATE ECE 2012 | Question: 43
The state transition diagram for the logic circuit shown is
The state transition diagram for the logic circuit shown is
Milicevic3306
16.0k
points
117
views
Milicevic3306
asked
Mar 25, 2018
Number Representations
gate2012-ec
digital-circuits
+
–
0
votes
0
answers
84
GATE ECE 2015 Set 2 | Question: 15
In an $8085$ microprocessor, which one of the following instructions changes the content of the accumulator? MOV B, M PCHL RNZ SBI BEH
In an $8085$ microprocessor, which one of the following instructions changes the content of the accumulator?MOV B, MPCHLRNZSBI BEH
Milicevic3306
16.0k
points
116
views
Milicevic3306
asked
Mar 27, 2018
Digital Circuits
gate2015-ec-2
digital-circuits
microprocessor-8085
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–
0
votes
0
answers
85
GATE ECE 2014 Set 2 | Question: 17
As FIR system is described by the system function $ H(z) = 1 + \frac{7}{2} z^{-1} + \frac{3}{2}z^{-2}$. The system is maximum phase minimum phase mixed phase zero phase
As FIR system is described by the system function $$ H(z) = 1 + \frac{7}{2} z^{-1} + \frac{3}{2}z^{-2}$$. The system ismaximum phaseminimum phasemixed phasezero phase
Milicevic3306
16.0k
points
115
views
Milicevic3306
asked
Mar 26, 2018
Digital Circuits
gate2014-ec-2
digital-circuits
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–
0
votes
0
answers
86
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
114
views
Milicevic3306
asked
Mar 27, 2018
Digital Circuits
gate2015-ec-1
numerical-answers
digital-circuits
+
–
0
votes
0
answers
87
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
107
views
Milicevic3306
asked
Mar 27, 2018
Digital Circuits
gate2016-ec-3
digital-circuits
microprocessor-8085
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–
0
votes
0
answers
88
GATE ECE 2013 | Question: 32
Two magnetically uncoupled inductive coils have $Q$ factors $q_{1}$ and $q_{2}$ at the chosen operating frequency. Their respective resistances are $R_{1}$ and $R_{2}.$ When connected in series, their effective $Q$ factor at the same operating frequency is $q_{1} + q_{2}$ ... $(q_{1}R_{2} + q_{2}R_{1})/(R_{1} + R_{2})$
Two magnetically uncoupled inductive coils have $Q$ factors $q_{1}$ and $q_{2}$ at the chosen operating frequency. Their respective resistances are $R_{1}$ and $R_{2}.$ W...
Milicevic3306
16.0k
points
106
views
Milicevic3306
asked
Mar 25, 2018
Digital Circuits
gate2013-ec
digital-circuits
+
–
0
votes
0
answers
89
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
102
views
Milicevic3306
asked
Mar 27, 2018
Digital Circuits
gate2015-ec-3
digital-circuits
microprocessor-8085
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–
0
votes
0
answers
90
GATE ECE 2017 Set 1 | Question: 43
Which one of the following gives the simplified sum of products expression for the Boolean function $F=m_{0}+m_{2}+m_{3}+m_{5}$, where $m_{0},m_{2},m_{3}$ and $m_{5}$ are minterms corresponding to the inputs $A,B$ and $C$ with $A$ as the $MSB$ and ... $\overline{A} BC+\overline{A} \: \overline{C}+A \overline{B}C$
Which one of the following gives the simplified sum of products expression for the Boolean function $F=m_{0}+m_{2}+m_{3}+m_{5}$, where $m_{0},m_{2},m_{3}$ and $m_{5}$ are...
admin
46.4k
points
99
views
admin
asked
Nov 17, 2017
Digital Circuits
gate2017-ec-1
digital-circuits
boolean-algebra
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–
0
votes
0
answers
91
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
95
views
Milicevic3306
asked
Mar 27, 2018
Digital Circuits
gate2016-ec-2
digital-circuits
microprocessor
rom
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–
0
votes
0
answers
92
GATE ECE 2013 | Question: 12
For $8085$ microprocessor, the following program is executed. $\begin{array}{ll} & MVI\: A, 05H; \\ & MVI\: B, 05H; \\ PTR: & ADD \:B; \\ & DCR \:B; \\ & JNZ\: PTR; \\ & ADI\: 03H; \\ & HLT; \end{array}$ At the end of program, accumulator contains $17H$ $20H $ $23H$ $ 05H$
For $8085$ microprocessor, the following program is executed.$\begin{array}{ll} & MVI\: A, 05H; \\ & MVI\: B, 05H; \\ PTR: & ADD \:B; \\ & DCR \:B; \\ & JNZ\: PTR; \\ & ...
Milicevic3306
16.0k
points
95
views
Milicevic3306
asked
Mar 25, 2018
Digital Circuits
gate2013-ec
digital-circuits
microprocessor-8085
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–
0
votes
0
answers
93
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
90
views
Milicevic3306
asked
Mar 27, 2018
Digital Circuits
gate2015-ec-1
digital-circuits
microprocessor-8085
+
–
1
votes
0
answers
94
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
88
views
Milicevic3306
asked
Mar 27, 2018
Digital Circuits
gate2015-ec-1
boolean-algebra
digital-circuits
+
–
0
votes
0
answers
95
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
87
views
Milicevic3306
asked
Mar 27, 2018
Digital Circuits
gate2016-ec-1
digital-circuits
microprocessor-8085
+
–
0
votes
0
answers
96
GATE ECE 2014 Set 4 | Question: 36
An N-type semiconductor having uniform doping is biased as shown in the figure. If $E_C$ is the lowest energy level of the conduction band, $E_V$ is the highest energy level of the valance band and $E_F$ is the Fermi level, which one of the following represents the energy band diagram for the biased N-type semiconductor?
An N-type semiconductor having uniform doping is biased as shown in the figure.If $E_C$ is the lowest energy level of the conduction band, $E_V$ is the highest energy lev...
Milicevic3306
16.0k
points
84
views
Milicevic3306
asked
Mar 26, 2018
Number Representations
gate2014-ec-4
digital-circuits
semiconductor
+
–
0
votes
0
answers
97
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...
Milicevic3306
16.0k
points
77
views
Milicevic3306
asked
Mar 27, 2018
Digital Circuits
gate2015-ec-3
numerical-answers
digital-circuits
+
–
0
votes
0
answers
98
GATE ECE 2012 | Question: 7
The output $Y$ of a $2-\text{bit}$ comparator is logic $1$ whenever the $2-\text{bit}$ input $A$ is greater than the $2-\text{bit}$ input $B$. The number of combinations for which the output is logic $1$, is $4$ $6$ $8$ $10$
The output $Y$ of a $2-\text{bit}$ comparator is logic $1$ whenever the $2-\text{bit}$ input $A$ is greater than the $2-\text{bit}$ input $B$. The number of combinations ...
Milicevic3306
16.0k
points
71
views
Milicevic3306
asked
Mar 25, 2018
Digital Circuits
gate2012-ec
digital-circuits
+
–
0
votes
0
answers
99
GATE ECE 2014 Set 4 | Question: 42
An $8085$ microprocessor executes $ STA 1234H $ with starting address location $1FFEH$ (STA copies the contents of the Accumulator to the $16$ ... $1FH, FEH, 1FH, FFH, 12H$ $1FH, 1FH, 12H, 12H$ $1FH, 1FH, 12H, 20H, 12H$
An $8085$ microprocessor executes $“STA 1234H”$ with starting address location $1FFEH$ (STA copies the contents of the Accumulator to the $16$- bit address location)....
Milicevic3306
16.0k
points
70
views
Milicevic3306
asked
Mar 26, 2018
Digital Circuits
gate2014-ec-4
digital-circuits
microprocessor-8085
+
–
0
votes
0
answers
100
GATE ECE 2014 Set 4 | Question: 14
For a given sample-and-hold circuit, if the value of the hold capacitor is increased, then droop rate decreases and acquisition time decreases droop rate decreases and acquisition time increases droop rate increases and acquisition time decreases droop rate increases and acquisition time increases
For a given sample-and-hold circuit, if the value of the hold capacitor is increased, thendroop rate decreases and acquisition time decreasesdroop rate decreases and acqu...
Milicevic3306
16.0k
points
67
views
Milicevic3306
asked
Mar 26, 2018
Digital Circuits
gate2014-ec-4
digital-circuits
sample-and-hold-circuits
+
–
1
votes
0
answers
101
GATE ECE 2011 | Question: 41
Two $\text{D}$ flip-flops are connected as a synchronous counter that goes through the following $\mathrm{Q}_{\text{B}} \;\mathrm{Q}_{\mathrm{A}}$ sequence $00 \rightarrow 11 \rightarrow 01 \rightarrow 10 \rightarrow 00 \rightarrow \cdots$ The connections to the ...
Two $\text{D}$ flip-flops are connected as a synchronous counter that goes through the following $\mathrm{Q}_{\text{B}} \;\mathrm{Q}_{\mathrm{A}}$ sequence $00 \rightarro...
admin
46.4k
points
32
views
admin
asked
Sep 3, 2022
Sequential Circuits
gate2011-ec
digital-circuits
sequential-circuit
flip-flop
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