The only difference between a combinational circuit and a flip-flop is that _____________(a) The flip-flop requires previous state(b) The flip-flop requires next state(c) The flip-flop requires a clock pulse(d) The flip-flop depends on the past as well as present statesThis question was posed to me during an interview.Origin of the question is Triggering of Flip Flops in chapter Flip-Flops of Digital Circuits

The only difference between a combinational circuit and a flip-flop is

1.	The only difference between a combinational circuit and a flip-flop is that _____________(a) The flip-flop requires previous state(b) The flip-flop requires next state(c) The flip-flop requires a clock pulse(d) The flip-flop depends on the past as well as present statesThis question was posed to me during an interview.Origin of the question is Triggering of Flip Flops in chapter Flip-Flops of Digital Circuits
Answer» The CORRECT choice is (c) The flip-flop requires a clock pulse To explain: Both flip-flop and latches are memory elements with clock/control inputs. They depend on the PAST as WELL as present states. Whereas, in CASE of combinational circuits, they only depend on the present state.

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For D flip-flop to JK flip-flop, the characteristics equation is given by ___________(a) D=JQ(p)’+Q(p)K’(b) D=JQ(p)’+KQ(p)’(c) D=JQ(p)+Q(p)K’(d) D=J’Q(p)+Q(p)KI got this question in quiz.This interesting question is from Realisation of one Flip-flop using other Flip-flops topic in portion Flip-Flops of Digital Circuits
For realisation of D flip-flop from SR flip-flop, the external input is given through ___________(a) S(b) R(c) D(d) Both S and RI have been asked this question in an online quiz.The origin of the question is Realisation of one Flip-flop using other Flip-flops topic in portion Flip-Flops of Digital Circuits
For realisation of SR flip-flop from JK flip-flop, if S=1, R=0 & present state is 0 then the excitation input will be ___________(a) J=1, K=1(b) J=X, K=1(c) J=1, K=X(d) J=0, K=0The question was asked in an interview for job.This intriguing question originated from Realisation of one Flip-flop using other Flip-flops topic in section Flip-Flops of Digital Circuits
The K-map simplification for realisation of SR flip-flop from JK flip-flop is ___________(a) J=1, K=0(b) J=R, K=S(c) J=S, K=R(d) J=0, K=1This question was posed to me in semester exam.The question is from Realisation of one Flip-flop using other Flip-flops in division Flip-Flops of Digital Circuits
For realisation of SR flip-flop from JK flip-flop, if S=1, R=0 & present state is 0 then next state will be ___________(a) 1(b) 0(c) Don’t care(d) ToggleThis question was addressed to me by my school teacher while I was bunking the class.Query is from Realisation of one Flip-flop using other Flip-flops in division Flip-Flops of Digital Circuits
For realisation of SR flip-flop from JK flip-flop, the excitation input will be obtained from ___________(a) S and R(b) R input(c) J and K input(d) D inputI have been asked this question in an online quiz.Question is taken from Realisation of one Flip-flop using other Flip-flops in chapter Flip-Flops of Digital Circuits
For realisation of JK flip-flop from SR flip-flop, if J=1, K=0 & present state is 0(i.e. Q(n)=0) then excitation input will be ___________(a) S=0, R=1(b) S=X, R=0(c) S=1, R=0(d) S=1, R=1The question was posed to me in an international level competition.This key question is from Realisation of one Flip-flop using other Flip-flops in portion Flip-Flops of Digital Circuits
For realisation of JK flip-flop from SR flip-flop, the input J and K will be given as ___________(a) External inputs to S and R(b) Internal inputs to S and R(c) External inputs to combinational circuit(d) Internal inputs to combinational circuitThe question was asked in an online interview.My question comes from Realisation of one Flip-flop using other Flip-flops in division Flip-Flops of Digital Circuits
For realisation of JK flip-flop from SR flip-flop, if J=0 & K=0 then the input is ___________(a) S=0, R=0(b) S=0, R=X(c) S=X, R=0(d) S=X, R=XThe question was posed to me at a job interview.Origin of the question is Realisation of one Flip-flop using other Flip-flops topic in chapter Flip-Flops of Digital Circuits
To realise one flip-flop using another flip-flop along with a combinational circuit, known as ____________(a) PREVIOUS state decoder(b) NEXT state decoder(c) MIDDLE state decoder(d) PRESENT state decoderThis question was posed to me in homework.This intriguing question comes from Realisation of one Flip-flop using other Flip-flops topic in chapter Flip-Flops of Digital Circuits

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