ACtE08 · Chapter 8Demo2 · Set 2🏛️ Past Licensure QuestionID: a98f06ef
In a symmetrical square-wave astable multivibrator, what is the nominal duty cycle of the output waveform?
In a symmetrical square-wave astable multivibrator, what is the nominal duty cycle of the output waveform?
Multiple Choice Options
- A✓ Correct Option
50%
- B
25%
- C
75%
- D
100%
Detailed Technical Solution & Explanation
A multivibrator configured to output a symmetrical square wave spends equal amounts of time in both semi-stable states ():
Since :
Option Analysis:
•
Option A (50%): Correct; a symmetrical square wave has an exact 50% duty cycle.
•
Option B (25%): Incorrect; represents an asymmetrical pulse train.
•
Option C (75%): Incorrect; asymmetrical output.
•
Option D (100%): Incorrect; represents a constant DC high level.
Reference: Demo2 · Set 2NEC Licensure Syllabus