Digital Electronics - Combinational Logic Circuits - Discussion
Discussion Forum : Combinational Logic Circuits - General Questions (Q.No. 9)
9.
Which of the figures in figure (a to d) is equivalent to figure (e)?
Discussion:
6 comments Page 1 of 1.
Avinash said:
1 decade ago
When you solve the truth table for circuit b and e it is same hence answer is b.
Dipta ranaghat said:
10 years ago
By calculating option E output is bar of (ab+cd) or (bar of ab. bar of cd), which equivalent is option B o/p.
HafidzK said:
9 years ago
Can solve using De Morgan's Theorem which is,
NOR = Inverter followed by an AND.
NOR = Inverter followed by an AND.
Ramya said:
8 years ago
a)X = AB + CD
b) X = (A + B)(C+D)= (A B) (C D)
c) X = (ABCD)
d) X = (A+B)(C+D) = AC + AD + BC + BD
e) X = (AB+CD) = (A B) (C D)
So it is clear that (e) is equivalent to (b).
b) X = (A + B)(C+D)= (A B) (C D)
c) X = (ABCD)
d) X = (A+B)(C+D) = AC + AD + BC + BD
e) X = (AB+CD) = (A B) (C D)
So it is clear that (e) is equivalent to (b).
KIRAN V said:
5 years ago
a) X = (AB + CD)'
b) X = (A' + B')(C'+D')
c) X = (ABCD)'
d) X = ((A+B)(C+D))'
e) X = ((AB+CD))' = (A' + B'). (C' + D')
From observing all the options, it is clear that (B) is equivalent to (e).
b) X = (A' + B')(C'+D')
c) X = (ABCD)'
d) X = ((A+B)(C+D))'
e) X = ((AB+CD))' = (A' + B'). (C' + D')
From observing all the options, it is clear that (B) is equivalent to (e).
(2)
Ramya said:
8 months ago
Good one, Thank you @KIRAN V.
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