In a JK flip flop output Qn = 1 and it does not change when clock pulse is applied. The possible combination of Jn and Kn is (X denotes don't care)

In a JK flip flop output Qn = 1 and it does not change when clock puls

1.	In a JK flip flop output Qn = 1 and it does not change when clock pulse is applied. The possible combination of Jn and Kn is (X denotes don't care)
A.	X and 0
B.	X and 1
C.	0 and X
D.	1 and X
Answer» B. X and 1