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 when both J and K inputs are 1, the next state (Q(t+1)) will be equal to the complement of the present state (Q(t)). In this case, since the present state is SET (Q(t) = 1), the next state (Q(t+1)) will be the complement of 1, which is 0.

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 = 1.