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Which statement describes the BEST operation of a negative-edge-triggered D flip-flop?
- a)The logic level at the D input is transferred to Q on NGT of CLK
- b)The Q output is ALWAYS identical to the CLK input if the D input is HIGH
- c)The Q output is ALWAYS identical to the D input when CLK = PGT
- d)The Q output is ALWAYS identical to the D input
Correct answer is option 'A'. Can you explain this answer?
Most Upvoted Answer
Which statement describes the BEST operation of a negative-edge-trigge...
Understanding Negative-Edge-Triggered D Flip-Flops
Negative-edge-triggered D flip-flops are essential components in digital circuits, used for storing binary data. Their operation hinges on the clock signal, which dictates when the data is transferred.
Key Operation Principle
- The critical point of operation occurs during the negative edge of the clock signal (CLK).
- At this moment, the logic level at the D input is sampled and transferred to the Q output.
Why Option 'A' is Correct
- Statement A: "The logic level at the D input is transferred to Q on NGT of CLK."
- This statement accurately describes the functioning of a negative-edge-triggered D flip-flop.
- NGT stands for Negative Going Transition, which refers to the moment the clock signal transitions from high to low.
- Timing: The D input's value is captured precisely at this transition, ensuring that Q reflects the D input's state right before the clock goes low.
Why Other Options are Incorrect
- Option B: This implies Q follows CLK when D is high, which is misleading since Q only changes at the clock's negative edge.
- Option C: Suggests Q is identical to D when CLK is high, which is not the case; Q changes only on the clock's falling edge.
- Option D: States Q is always identical to D, which is incorrect as Q only updates on the negative edge of CLK.
Conclusion
In summary, the best description of a negative-edge-triggered D flip-flop’s operation is found in option A, emphasizing the precise moment of data transfer linked to the clock's negative edge.
Negative-edge-triggered D flip-flops are essential components in digital circuits, used for storing binary data. Their operation hinges on the clock signal, which dictates when the data is transferred.
Key Operation Principle
- The critical point of operation occurs during the negative edge of the clock signal (CLK).
- At this moment, the logic level at the D input is sampled and transferred to the Q output.
Why Option 'A' is Correct
- Statement A: "The logic level at the D input is transferred to Q on NGT of CLK."
- This statement accurately describes the functioning of a negative-edge-triggered D flip-flop.
- NGT stands for Negative Going Transition, which refers to the moment the clock signal transitions from high to low.
- Timing: The D input's value is captured precisely at this transition, ensuring that Q reflects the D input's state right before the clock goes low.
Why Other Options are Incorrect
- Option B: This implies Q follows CLK when D is high, which is misleading since Q only changes at the clock's negative edge.
- Option C: Suggests Q is identical to D when CLK is high, which is not the case; Q changes only on the clock's falling edge.
- Option D: States Q is always identical to D, which is incorrect as Q only updates on the negative edge of CLK.
Conclusion
In summary, the best description of a negative-edge-triggered D flip-flop’s operation is found in option A, emphasizing the precise moment of data transfer linked to the clock's negative edge.
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Which statement describes the BEST operation of a negative-edge-trigge...
By the truth table of D flip flop, we can observe that Q always depends on D. Hence, for every negative trigger pulse, the logic at input D is shifted to Output Q.
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Which statement describes the BEST operation of a negative-edge-triggered D flip-flop?a)The logic level at the D input is transferred to Q on NGT of CLKb)The Q output is ALWAYS identical to the CLK input if the D input is HIGHc)The Q output is ALWAYS identical to the D input when CLK = PGTd)The Q output is ALWAYS identical to the D inputCorrect answer is option 'A'. Can you explain this answer?
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Which statement describes the BEST operation of a negative-edge-triggered D flip-flop?a)The logic level at the D input is transferred to Q on NGT of CLKb)The Q output is ALWAYS identical to the CLK input if the D input is HIGHc)The Q output is ALWAYS identical to the D input when CLK = PGTd)The Q output is ALWAYS identical to the D inputCorrect answer is option 'A'. Can you explain this answer? for Electrical Engineering (EE) 2025 is part of Electrical Engineering (EE) preparation. The Question and answers have been prepared according to the Electrical Engineering (EE) exam syllabus. Information about Which statement describes the BEST operation of a negative-edge-triggered D flip-flop?a)The logic level at the D input is transferred to Q on NGT of CLKb)The Q output is ALWAYS identical to the CLK input if the D input is HIGHc)The Q output is ALWAYS identical to the D input when CLK = PGTd)The Q output is ALWAYS identical to the D inputCorrect answer is option 'A'. Can you explain this answer? covers all topics & solutions for Electrical Engineering (EE) 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Which statement describes the BEST operation of a negative-edge-triggered D flip-flop?a)The logic level at the D input is transferred to Q on NGT of CLKb)The Q output is ALWAYS identical to the CLK input if the D input is HIGHc)The Q output is ALWAYS identical to the D input when CLK = PGTd)The Q output is ALWAYS identical to the D inputCorrect answer is option 'A'. Can you explain this answer?.
Which statement describes the BEST operation of a negative-edge-triggered D flip-flop?a)The logic level at the D input is transferred to Q on NGT of CLKb)The Q output is ALWAYS identical to the CLK input if the D input is HIGHc)The Q output is ALWAYS identical to the D input when CLK = PGTd)The Q output is ALWAYS identical to the D inputCorrect answer is option 'A'. Can you explain this answer? for Electrical Engineering (EE) 2025 is part of Electrical Engineering (EE) preparation. The Question and answers have been prepared according to the Electrical Engineering (EE) exam syllabus. Information about Which statement describes the BEST operation of a negative-edge-triggered D flip-flop?a)The logic level at the D input is transferred to Q on NGT of CLKb)The Q output is ALWAYS identical to the CLK input if the D input is HIGHc)The Q output is ALWAYS identical to the D input when CLK = PGTd)The Q output is ALWAYS identical to the D inputCorrect answer is option 'A'. Can you explain this answer? covers all topics & solutions for Electrical Engineering (EE) 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Which statement describes the BEST operation of a negative-edge-triggered D flip-flop?a)The logic level at the D input is transferred to Q on NGT of CLKb)The Q output is ALWAYS identical to the CLK input if the D input is HIGHc)The Q output is ALWAYS identical to the D input when CLK = PGTd)The Q output is ALWAYS identical to the D inputCorrect answer is option 'A'. Can you explain this answer?.
Solutions for Which statement describes the BEST operation of a negative-edge-triggered D flip-flop?a)The logic level at the D input is transferred to Q on NGT of CLKb)The Q output is ALWAYS identical to the CLK input if the D input is HIGHc)The Q output is ALWAYS identical to the D input when CLK = PGTd)The Q output is ALWAYS identical to the D inputCorrect answer is option 'A'. Can you explain this answer? in English & in Hindi are available as part of our courses for Electrical Engineering (EE).
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ample number of questions to practice Which statement describes the BEST operation of a negative-edge-triggered D flip-flop?a)The logic level at the D input is transferred to Q on NGT of CLKb)The Q output is ALWAYS identical to the CLK input if the D input is HIGHc)The Q output is ALWAYS identical to the D input when CLK = PGTd)The Q output is ALWAYS identical to the D inputCorrect answer is option 'A'. Can you explain this answer? tests, examples and also practice Electrical Engineering (EE) tests.
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