1 votes 1 votes In the following circuit, Y can be expressed as : $\text{Y = BC + A}$ $\text{Y = AC}' + \text{BC}$ $\text{Y = C}$ $\text{Y = B}$ Digital Logic isro2014-ece isro-ece digital-logic combinational-circuit multiplexer + – sh!va asked Feb 22, 2017 edited Dec 4, 2022 by Lakshman Bhaiya sh!va 764 views answer comment Share Follow See all 0 reply Please log in or register to add a comment.
Best answer 2 votes 2 votes Mux 4x1 o/p: 0.AcBc + 1.AcB + 0.ABc + A .AB (assume as X) or, X = 1.AcB+ A .AB or, X = AcB+AB or, X = B Mux 2x1 o/p: Y=X. Cc + B. C (since X=B) OR, Y = BCc + B. C = B (OPTION D~~~~~ANSWER) Smriti012 answered Feb 22, 2017 selected Mar 8, 2017 by vamsi2376 Smriti012 comment Share Follow See all 2 Comments See all 2 2 Comments reply Abbas2131 commented Feb 25, 2017 reply Follow Share Sister the output for ur first mux is wrng The Input line 1 is 1 therefore it will be A'B not AB' 0 votes 0 votes Smriti012 commented Feb 25, 2017 reply Follow Share thanks.....:) i corrected my mistake 0 votes 0 votes Please log in or register to add a comment.
1 votes 1 votes The output for 4x1 A'B+AB =B This will serve as input for 2x1 Therefore output for 2x1 BC' + BC =B thereofre answer is B i.e. option D Abbas2131 answered Feb 25, 2017 Abbas2131 comment Share Follow See all 0 reply Please log in or register to add a comment.
1 votes 1 votes option d is right. abhishekmehta4u answered Mar 11, 2019 abhishekmehta4u comment Share Follow See all 0 reply Please log in or register to add a comment.
–1 votes –1 votes It is clear by truth table that answer is (B) as Y matches with column (AC'+BC). MeHarshVardhan answered Feb 22, 2017 MeHarshVardhan comment Share Follow See 1 comment See all 1 1 comment reply Devshree Dubey commented Feb 22, 2017 i edited by Devshree Dubey Feb 22, 2017 reply Follow Share How have you got the Y's value equivalent to tat of AC'+BC??? Please can you explain. :) 0 votes 0 votes Please log in or register to add a comment.