1 votes 1 votes Digital Logic digital-logic adder + – vaishali jhalani asked Jan 4, 2017 vaishali jhalani 904 views answer comment Share Follow See all 4 Comments See all 4 4 Comments reply Kantikumar commented Jan 4, 2017 reply Follow Share Ans : 10? 0 votes 0 votes Pavan Kumar Munnam commented Jan 4, 2017 reply Follow Share i am getting 6.25 what is the ans? 0 votes 0 votes vaishali jhalani commented Jan 4, 2017 reply Follow Share Ya..ans is 10 but according to me it should be 1000/(40*4) 0 votes 0 votes Kantikumar commented Jan 4, 2017 reply Follow Share How are you getting this? 0 votes 0 votes Please log in or register to add a comment.
3 votes 3 votes Hence 10 is the correct answer Habibkhan answered Jan 4, 2017 Habibkhan comment Share Follow See all 8 Comments See all 8 8 Comments reply vaishali jhalani commented Jan 4, 2017 reply Follow Share Then this ans is wrong?? https://gateoverflow.in/8250/gate2015-2_48 0 votes 0 votes Habibkhan commented Jan 4, 2017 reply Follow Share That question is different from this one..:).Not similar 0 votes 0 votes vaishali jhalani commented Jan 4, 2017 reply Follow Share NO..basically my doubt is ...in ripple carry adder the next adder module will start only when the carry from previous module is calculated or All the modules will start at the same time 0 votes 0 votes Habibkhan commented Jan 4, 2017 reply Follow Share After the carry goes from lower bit to higher bit after that higher bit addition works in ripple carry adder.. 0 votes 0 votes vaishali jhalani commented Jan 4, 2017 reply Follow Share Then what you are doing here.. Is it not similar to ripple carry adder ? 0 votes 0 votes Habibkhan commented Jan 4, 2017 reply Follow Share Cascade connection means what ?? One adder after another..It is the default meaning and you have to proceed like this.. It is not a new thing..:) 0 votes 0 votes BILLY commented Jan 4, 2017 reply Follow Share why s0,s1,s2 are not taking 40ns? 0 votes 0 votes Anusha Motamarri commented Jan 4, 2017 reply Follow Share @BILLY assume you started computation at t=0 at t=40, s0 will come out at t=60, S1 will come out at t=80,S2 will come out at t=100,s3 wil comeout means by 100ns, we have all the sumbits in the output. 1 votes 1 votes Please log in or register to add a comment.