Digital Electronics - Combinational Logic Analysis - Discussion
Discussion Forum : Combinational Logic Analysis - General Questions (Q.No. 17)
17.
A 4-variable AND-OR circuit produces a 1 at its Y output. Which combination of inputs is correct?
Discussion:
7 comments Page 1 of 1.
Suren said:
6 years ago
Put all combination into two AND gates with One OR gate. In one combition you will get 1 as output. You will get option C as answer.
Lakshmi said:
8 years ago
What is AND-OR circuit?
Describe it in detail.
Describe it in detail.
Diya said:
1 decade ago
What is the and - or circuit?
Yogesh said:
1 decade ago
What is the and-or circuit ?
Afash said:
1 decade ago
Use two AND for 4 inputs, and then simply use or gate. Answer will be 1 (A=1, B=1, C=0, & D=0) one AND gate will send 1 and the other will send 0. Than OR gate will operate.
And or said:
1 decade ago
@Dnyaneshwar Sahane, How can you take 'A 4-variable AND-OR circuit' as
Y=AB+CD.? I THINK THE ANS IS WRONG.
How you take the AND OR circuit as Y=AB+CD? If i take it as Y=AC+BD then where is the wrong?
Y=AB+CD.? I THINK THE ANS IS WRONG.
How you take the AND OR circuit as Y=AB+CD? If i take it as Y=AC+BD then where is the wrong?
Dnyaneshwar Sahane said:
1 decade ago
Option C is right Answer.
Same as Q 16 only the difference is output is High.
A AND with B & C AND with D.
First AND gate output is AB & second AND gate output is CD.
AB OR with CD so,
Y=AB+CD.
A=1, B=1, C=0, D=0,
Output will be High only.
Same as Q 16 only the difference is output is High.
A AND with B & C AND with D.
First AND gate output is AB & second AND gate output is CD.
AB OR with CD so,
Y=AB+CD.
A=1, B=1, C=0, D=0,
Output will be High only.
(1)
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