Q20

MCQ1 mark, −0.33

Consider a $4$ -bit Johnson counter with an initial value of $0000.$ The counting sequence of this counter is

(A)

$0, 1, 3, 7, 15, 14, 12, 8, 0$

(B)

$0, 1, 3, 5, 7, 9, 11, 13, 15, 0$

(C)

$0, 2, 4, 6, 8, 10, 12, 14, 0$

(D)

$0, 8, 12, 14, 15, 7, 3, 1, 0$

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