Multiple choice

For the digital circuit shown in the given figure the output $ Q_3Q_2Q_1Q_0 = 0001 $initially. After a clock pulse appear, the output $Q_3Q_2Q_1Q_0 $ will be

  1. 0001

  2. 0011

  3. 0111

  4. 1111
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

$J_0K_0 = 00 \qquad Q_{0(n+1)} = Q_n = 1$ $J_1K_1 = 00 \qquad Q_{1(n+1)} = \bar Q_n = 1$ $J_2K_2 = Q_1 = 00 \qquad Q_{2(n+1)} = Q_n = 1$ $J_3K_3 = Q_2Q_1 = 00$ $Q_3Q_2Q_1Q_0 = 0011$

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