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In the J-K flip-flop, we have J = Q̅ and K = 1 as shown in the figure: Assuming the flip-flop was initially cleared and then clocked for 6 pulses, the sequence at the Q output will be 

In the J-K flip-flop, we have J = Q̅ and K = 1 as shown in the figure: Assuming the flip-flop was initially cleared and then clocked for 6 pulses, the sequence at the Q output will be  Correct Answer 010101

J-K Flip Flop:

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Characteristic table of JK flip-flop is:

J

K

Qn+1

0

0

Qn

0

1

0

1

0

1

1

1

Q̅n 

 

Analysis:

Given: J = Q̅n and K = 1

The output table with the help of the Characteristic table of JK Flip flop will be:

CLK

J = Q̅ 

K =1

Qn+1

0

-

-

0

1

1

1

1

2

1

1

1

3

1

1

1

 

So, the output sequence is like 0 1 0 1 0 1 0 1 0 1........

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