With a 10MHz square wave as the clock and J=K=0, what output frequency does a JK flip-flop produce?

Question Analysis

This question is testing your understanding of JK flip-flops, a type of digital storage element used in sequential logic circuits. Specifically, it is asking about the behavior of a JK flip-flop under a set condition: when both the J and K inputs are 0. You are also given a 10MHz square wave as the clock input. The task is to determine the output frequency of the flip-flop under these conditions.

Answer

When both J and K inputs of a JK flip-flop are set to 0, the flip-flop is in the "hold" state, meaning that its output does not change on a clock pulse. Therefore, the output frequency of the JK flip-flop remains the same as its previous state. Since the question provides a 10MHz clock signal and does not mention any previous output state or changes to the clock input, the flip-flop will not toggle, and the output frequency remains at 0Hz, assuming it was initially at a stable state of 0.

In summary, when J=K=0 for a JK flip-flop, the output frequency will be 0Hz regardless of the input clock frequency.