Is the Ripple Counter Self-Starting?
No, the counter is not self-starting.
Reason
A counter is called self-starting if, after entering any invalid or unused state, it automatically returns to a valid counting sequence.
In the given ripple counter:
- The JK flip-flops are negative-edge triggered.
- There is no correcting or reset logic shown for invalid states.
- If the counter accidentally enters an unused state, it may continue in an unintended sequence instead of recovering automatically.
Therefore, the counter is not self-starting.
Correct Option: B. No
