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

In the given scenario, we have a JK flip flop where the present state is RESET and the next state is SET. To determine the possible inputs, we need to consider the truth table of a JK flip flop.

A JK flip flop has two inputs: J (the "set" input) and K (the "reset" input). The possible combinations of inputs and their corresponding outputs are as follows:

1. When J=0 and K=0: This is the hold state, where the present state remains unchanged. In this case, the next state will also be RESET.

2. When J=0 and K=1: This is the reset state, where the present state is reset to 0. In this case, the next state will be RESET.

3. When J=1 and K=0: This is the set state, where the present state is set to 1. In this case, the next state will be SET.

4. When J=1 and K=1: This is the toggle state, where the present state is complemented (toggled). In this case, the next state will be the complement of the present state.

Based on the given information that the present state is RESET and the next state is SET, we can conclude that the possible inputs for this scenario are J=1 and K=0.

Please note that if there is an "X" in the truth table, it means that the value of that input is "don't care" and can be either 0 or 1. However, in this specific scenario, the given information about the present and next states allows us to determine the specific inputs.