Question on multivibrator

Question

Please explain how the answer is (A).

Comments

hope not in syllabus of GATE....

Answer 1

2 points
1:- if circuit have odd number of NOT gate then it is "Astable Multivibrator"

2:- if circuit have even number of NOT gate then it is "Bistable Multivibrator"

Comments

Anything for monostable multivibrator?

---

Astable :- have no stable state for eg. "single not gate with circuit"
monostable:- have one stable state. for eg.  The pulse detector is classified as a monostable multivibrator because it has only one stable state. By stable, I mean a state of output where the device is able to latch or hold to forever, without external prodding.
bistable:- have 2 stable state. for eg. consider S-R FF which have set and reset state.

---

Thanks a lot!

Answer 2

->  if circuit have odd number of NOT gate then it is Astable Multivibrator ( have no stable state).

-> if circuit have even number of NOT gate then it is Bistable Multivibrator (  have 2 stable state ).