Exam-style question
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EC25: For Digital signal processing, a student is analysing a laboratory comparator output. Which option gives the best Astables reasoning for the objective "Calculate or interpret oscillation period where appropriate"?.
- A.EC25 correct: In the laboratory comparator output, the answer follows the signal path from input condition to component response to output change, so it supports Calculate or interpret oscillation period where appropriate.
- B.EC25 distractor: It names a component but does not connect the input condition to the measured output in Astables.
- C.EC25 distractor: It reverses the cause-and-effect chain, so the output is explained before the circuit condition is set.
- D.EC25 distractor: It gives a generic electronics definition without applying the laboratory comparator output context.
Model answer
What a good answer should say
- The correct option is EC25 correct: In the laboratory comparator output, the answer follows the signal path from input condition to component response to output change, so it supports Calculate or interpret oscillation period where appropriate.
Explanation
Why this works
It is best because it keeps Astables anchored to the circuit signal path: input condition, component response, then output change. The distractors are wrong because they omit the output link, reverse the electronics causality, or drift into a generic component definition rather than applying the laboratory comparator output.
Common mistake
No common mistake is linked to this question yet.