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-An oscilloscope indicates that the circuit in Figure 9- 1 has no Q1 output signal. All J- K inputs are HIGH, the CLK signal is present and Q0 is toggling. The C input of FF1 is a constant LOW. What could be causing the problem?
A) The Q0 output should be connected to the J input of FFl.
B) The input of FF1 may be shorted to ground.
C) The output of FF0 may be shorted to ground.
D) The problem could be caused by either B or C.

Question

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-An oscilloscope indicates that the circuit in Figure 9- 1 has no Q1 output signal. All J- K inputs are HIGH, the CLK signal is present and Q0 is toggling. The C input of FF1 is a constant LOW. What could be causing the problem?
A) The Q0 output should be connected to the J input of FFl. 
B) The input of FF1 may be shorted to ground. 
C) The output of FF0 may be shorted to ground. 
D) The problem could be caused by either B or C.

Quizplus · Accepted Answer

Given that all J-K inputs are HIGH and the CLK signal is present with Q0 toggling, but there's no Q1 output signal, and the C input of FF1 is constantly LOW, the issue could stem from either the input of FF1 being shorted to ground (B) or the output of FF0 being shorted to ground (C). Both scenarios would prevent the proper operation of the flip-flop circuit, leading to no output signal from Q1.

‪ -An Oscilloscope Indicates That the Circuit in Figure 9- 1