Electronics and Communication Engineering - Digital Electronics - Discussion

Discussion Forum : Digital Electronics - Section 1 (Q.No. 12)
12.
In the expression A + BC, the total number of minterms will be
2
3
4
5
Answer: Option
Explanation:

The min terms are ABC + ABC + AB C + ABC + ABC.

Discussion:
30 comments Page 2 of 3.

Diksha said:   8 years ago
Using k- map, it will be easy to solve these kind of problems.
(1)

RJ PHENOMENAL said:   8 years ago
We have to express it in standard form.
(1)

Asim said:   8 years ago
Thanks for the discussion.

Tamil said:   8 years ago
Thank you @Padmaja.

Your explanation is very helpful.

Deepshikha said:   8 years ago
Yes, @Padmaja.

If we want to find max terms of the same function then in the above expression, we just have to write the expression for the false values (0). So we get three expressions that is A'B'C'+A'B'C+A'BC'.

Mrunal said:   9 years ago
How we can find max terms for the same question?

Padmaja said:   9 years ago
A B C BC A+BC
1 1 1 1 1
1 1 0 0 1
1 0 1 0 1
1 0 0 0 1
0 1 1 1 1
0 1 0 0 0
0 0 1 0 0
0 0 0 0 0

Write the expressions for true values i.e. for 1 values.

First five are true values.

ABC + ABC' + AB'C + AB'C' + A'BC.
(1)

Seetha kumari said:   9 years ago
How to find the minterm?

A + BC = A (B + B') (C + C') + BC (A + A').
= A (BC + BC '+ B'C + B'C') + BCA + BCA',
= ABC + ABC'+ AB'C + AB'C' + BCA + BCA',
= 2ABC + ABC' + AB'C + AB'C' + A'BC.
(3)

Naresh said:   9 years ago
Is it like A + BC = (A + B) (A + C).

Then the number of min terms are 2, right?

Mayur said:   9 years ago
Thank you @Sharon.


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