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Digital Electronics - Flip-Flops

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Here you can find multiple-choice Digital Electronics questions and answers based on "Flip-Flops" for your placement interviews and competitive exams. Objective-type and true-or-false-type questions are given too.

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How do I solve Digital Electronics quiz problems based on "Flip-Flops"?

You can easily solve Digital Electronics quiz problems based on "Flip-Flops" by practising the given exercises, including shortcuts and tricks.

Exercise : Flip-Flops - General Questions
1.
Determine the output frequency for a frequency division circuit that contains 12 flip-flops with an input clock frequency of 20.48 MHz.
10.24 kHz
5 kHz
30.24 kHz
15 kHz
Answer: Option
Explanation:
No answer description is available. Let's discuss.
2.
Which statement BEST describes the operation of a negative-edge-triggered D flip-flop?
The logic level at the D input is transferred to Q on NGT of CLK.
The Q output is ALWAYS identical to the CLK input if the D input is HIGH.
The Q output is ALWAYS identical to the D input when CLK = PGT.
The Q output is ALWAYS identical to the D input.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
3.
Propagation delay time, tPLH, is measured from the ________.
triggering edge of the clock pulse to the LOW-to-HIGH transition of the output
triggering edge of the clock pulse to the HIGH-to-LOW transition of the output
preset input to the LOW-to-HIGH transition of the output
clear input to the HIGH-to-LOW transition of the output
Answer: Option
Explanation:
No answer description is available. Let's discuss.
4.
How is a J-K flip-flop made to toggle?
J = 0, K = 0
J = 1, K = 0
J = 0, K = 1
J = 1, K = 1
Answer: Option
Explanation:
No answer description is available. Let's discuss.
5.
How many flip-flops are in the 7475 IC?
1
2
4
8
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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