1 votes 1 votes The answer is given B. Please explain the approach. Digital Logic gateforum-test-series digital-logic multiplexer + – Gupta731 asked Nov 7, 2018 edited Mar 15, 2019 by ajaysoni1924 Gupta731 1.0k views answer comment Share Follow See all 10 Comments See all 10 10 Comments reply Magma commented Nov 7, 2018 reply Follow Share Function = A'BC' + A'BC + AB'C' + ABC = BC (A+A') + A'BC' + AB'C' now consider B and C as a select lines B = S1 C= S0 therefore (1)S1S0 + (I2) S1S0' + (I0)S1'S0' therefore In mux if apply I0 = A I1 = 0 I2 = A' I3 = 1 Both are equivalent 1 votes 1 votes Gupta731 commented Nov 7, 2018 reply Follow Share not getting you, How the inputs are assigned 0 votes 0 votes Shaik Masthan commented Nov 7, 2018 reply Follow Share Function is ∑m(2,3,4,7) = A' B C' + A' B C + A B' C' + A B C -------> (1) Now fix Select Lines ( Let take Option B ), S0 = C, S1 = B then output of MUX = B' C' I0 + B' C I1 + B C' I2 + B C I3 --------> (2) Now compare (1) and (2) I0 = A, I1 = 0, I2 = A' and I3 = (A' + A) = 1 2 votes 2 votes Gupta731 commented Nov 7, 2018 reply Follow Share Hmm, got it. Nice 0 votes 0 votes Gupta731 commented Nov 7, 2018 reply Follow Share Can you explain me this approach? 2 votes 2 votes Shaik Masthan commented Nov 7, 2018 reply Follow Share i can't explain it in writing form, but i can explain it by video... May someone can Help You! 0 votes 0 votes Gupta731 commented Nov 7, 2018 reply Follow Share I got it from the answer below 0 votes 0 votes Shaik Masthan commented Nov 7, 2018 reply Follow Share then it is fine :) 0 votes 0 votes altamash commented May 7, 2019 reply Follow Share can u explain again not getting 0 votes 0 votes Himanshu Kumar Gupta commented Sep 5, 2020 reply Follow Share yes Option B is right 0 votes 0 votes Please log in or register to add a comment.
0 votes 0 votes see the inputs to I0,I1,I2,I3 in terms of a variable is A... so make a table like this: Circle the min terms which are given as 2,3,4,&7 Raghav Khajuria answered Nov 7, 2018 Raghav Khajuria comment Share Follow See all 2 Comments See all 2 2 Comments reply Gupta731 commented Nov 7, 2018 reply Follow Share can I also check with respect to B or C , if options are provided that way? 0 votes 0 votes Gupta731 commented Nov 7, 2018 reply Follow Share First A' will be there and below it, A. is this the case always? 0 votes 0 votes Please log in or register to add a comment.