In JK flip flop, the present state is SET and the next state is SET. What can the possible inputs? (X means “don’t care”)

To determine the possible inputs for a JK flip flop where the present state is SET and the next state is SET, we can refer to the truth table for a JK flip flop.

The truth table for a JK flip flop is as follows:

J | K | Q(t) | Q(t+1)

0 | 0 | 0 | 0 0 | 0 | 1 | 1 0 | 1 | 0 | 0 0 | 1 | 1 | 0 1 | 0 | 0 | 1 1 | 0 | 1 | 1 1 | 1 | 0 | X 1 | 1 | 1 | X

In this case, we know that the present state (Q(t)) is SET, which means it is equal to 1. And we also know that the next state (Q(t+1)) is SET, which means it is also equal to 1.

Looking at the truth table, we can see that there are two possible inputs that satisfy these conditions: J=1 and K=0, or J=1 and K=1. These inputs will result in the present state being SET (Q(t)=1) and the next state also being SET (Q(t+1)=1).

Therefore, the possible inputs for a JK flip flop where the present state is SET and the next state is SET are J=1 and K=0, or J=1 and K=1.