GATE Question of The Day - Digital Electronics

The Boolean function realized by the logic circuit shown is?



(A)        F= Σm(0,1,3,5,9,10,14)                          (B)        F= Σm(2,3,5,7,8,12,13)
(C)        F= Σm(1,2,4,5,11,14,15)                        (D)        F= Σm(2,3,5,7,8,9,12)

Its a simple challenge to all the aspirants.!


6 comments:

  1. VamshiSeptember 5, 2012 at 11:05 PM

    option D.... is the correct answer for the above question...

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  2. RenukaSeptember 7, 2012 at 7:35 PM

    for solving this type of problems there is one formula i.e,
    f(a,b,c,d)=s1's2'I0+s1s0'I1+s1's0I2+s1s0I3
    here s1=a,s0=b,i0=c,i1=d,i2=c',i3=c'd'
    substitute these values in above formula....
    we get
    f=a'b'c+ab'd+ab'c'+abc'd'
    =a'b'cd+a'b'cd'+a'bcd+a'bc'd+ab'c'd+ab'c'd'+abc'd'
    f=(2,3,5,7,8,9,12)

    ReplyDelete
  3. AnonymousSeptember 9, 2012 at 12:34 AM

    b is the correct answer

    ReplyDelete
  4. AnonymousSeptember 10, 2012 at 4:40 AM

    answer:d

    ReplyDelete
  5. peehu jainSeptember 26, 2012 at 6:57 PM

    d

    ReplyDelete
  6. ApurbaOctober 2, 2012 at 5:23 PM

    ANS:D

    ReplyDelete