Location:Home > slippers > the sequence at the Q output will be a. 010000 b. 011001 c. 010010 d. 010101 Answer: D Solution : h

## the sequence at the Q output will be a. 010000 b. 011001 c. 010010 d. 010101 Answer: D Solution : h

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1.       Choose the correct statements relating to the circuit of figure shown Solution :

1988

1.       The circuit given below is a a.       JK flip flop

b.      Johnson counter

c.       RS latch

d.      None of the above

1991

1.    An S-R flip flop can be converted into a T flip flop by connecting ____ to Qbar and _____ to Q.

Answer:    S to Qbar and R to Q

1992

1.       A new clocked X-Y flip flop is defined with two inputs, X and Y is in addition to the clock input. The flip flop functions as follows:

If XY = 00, the flip flop changes state with each clock pulse

If XY = 01, the flip flop state Q becomes ‘1’ with the next clock pulse

If XY = 10, the flip flop state Q becomes ‘0’ with the next clock pulse

If XY = 11, the change of state occurs with the clock pulse

a.       Write the truth table for the XY flip flop

b.      Write the excitation table for the XY flip flop

c.       It is desirable to convert a J-K flip flop into X-Y flip flop by adding some external      gates, if necessary. Draw a circuit to show how you will implement in X-Y flip flop using   a J-K flip flop.

1994

1.   For the digital circuit shown in the figure, explain what happens at nodes N1, N2, F and F’ when 