Physics · Analog Electronics
Which of the following statements are correct? (A) A zero-crossing detector is a comparator with Vref = 0. (B) An astable multivibrator is used to generate pulses of a single desired duration when triggered. (C) The phase-shift and Wien-bridge oscillators are commonly used sine-wave oscillators for radio frequencies. (D) The frequency of a square-wave generator is independent of the trigger levels of the comparator. (E) A triangular wave can be generated by integrating a square wave. Choose the correct answer from the options given below:
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1(A) and (B) only
- 2(A) and (C) only
- 3(A) and (E) only✓
- 4(D) and (E) only
Correct answer
(A) and (E) only
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