Circle the label of the correct output timing below for the

Circle the label of the correct output timing below for the Q1 and Q2 outputs. If the correct output waveform is not shown, circle nothing.

Solution

For the given circuit,

Output Q1=A when B is +ve level triggered

=Previous value of Q1 when B is low

Output Q2= A when B is +ve edge triggered

= Previous value of Q1 when B is -ve edge triggered

Hence , for Q1, the output is waveform Q1B

for Q2, the output waveform is Q2A