0 votes 0 votes Digital Logic digital-logic + – Shivangi Parashar 2 asked Sep 1, 2018 Shivangi Parashar 2 360 views answer comment Share Follow See all 7 Comments See all 7 7 Comments reply MiNiPanda commented Sep 1, 2018 reply Follow Share Is it A? Only Q1(t+1) is asked.. there isn't any use of the next D F/F and the circuitry :/ 0 votes 0 votes Magma commented Sep 1, 2018 reply Follow Share I think "A" is the answer 0 votes 0 votes Magma commented Sep 1, 2018 reply Follow Share But My question is if they want to find Q2(t+1) , then what will be the characteristic equation . MiNiPanda can you tell me ??? 0 votes 0 votes Shivangi Parashar 2 commented Sep 1, 2018 reply Follow Share @Mini panda can you please elaborate it 0 votes 0 votes Shaik Masthan commented Sep 1, 2018 reply Follow Share @Magma find Q2(t+1) , Q2.Q1 2 votes 2 votes Shaik Masthan commented Sep 1, 2018 reply Follow Share @Shivangi Parashar 2 given is JK flip-Flop, and J=K if J=K=0 ===> output simply follows previous if J=K=1 ===> output simply complement previous that means X=0 ==> Q1 ====> X' . Q1 and X=1 ==> Q'1 ====> X . Q'1 characteristic eqn = X' . Q1 + X . Q'1 0 votes 0 votes smsubham commented Sep 1, 2018 reply Follow Share For Q1 Notice both j and k are same so it's The flip flop. So Q(t + 1) = X xor Q For Q2 It's D flip flop , whatever we give as input is output. So Q2 = D = Q2.Q1 P.S.: watch knowledge GATE YouTube videos on this all your doubts will be cleared after that. 0 votes 0 votes Please log in or register to add a comment.