Digital Circuits-Sequential Circuits [GATE (Graduate Aptitude Test in Engineering) Electronics]: Questions 1 - 4 of 66
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Question 1
Appeared in Year: 2008
Question
MCQ▾For each of the positive edge-triggered J K flip - flop used in the following figure, the propagation delay is .
Which of the following wave forms correctly represents the output at
Choices
| Choice (4) | Response | |
|---|---|---|
a. |  | |
b. |  | |
c. |  | |
d. |  | |
Question 2
Appeared in Year: 2004
Question
MCQ▾In the modulo-6 ripple counter shown in figure, the output of the 2- input gate is used to clear the J-K flip-flop The 2-input gate is
Choices
| Choice (4) | Response | |
|---|---|---|
a. | An OR gate | |
b. | A NOR gate | |
c. | An AND gate | |
d. | A NAND gate | |
Question 3
Appeared in Year: 2001
Question
MCQ▾In the figure, the J and K inputs of all the four Flip-Flips are made high. The frequency of the signal at output Y is,
Choices
| Choice (4) | Response | |
|---|---|---|
a. | 0.91 kHz | |
b. | 0.833 kHz | |
c. | 0.77 kHz | |
d. | 1 kHz | |
Question 4
Appeared in Year: 2007
Question
MCQ▾In the Digital-to-Analog converter circuit shown in the figure below, V = 10 and R = 10 K
The current and voltage is
Choices
| Choice (4) | Response | |
|---|---|---|
a. | 62.5 A, -3.125V | |
b. | 250 A, 6.250 V | |
c. | 31.25 A, -0.781V | |
d. | 125 A, -1.562 V | |