Electronics and Communication Engineering - Digital Electronics - Discussion

Discussion Forum : Digital Electronics - Section 1 (Q.No. 41)
41.
The number of distinct Boolean expression of 4 variables is
16
256
1024
65536
Answer: Option
Explanation:

22n = 224 = 216 .

Discussion:
8 comments Page 1 of 1.

Santosh Gupta said:   4 years ago
@Dhanya,

Your explanation is awesome. Thanks.

Raj said:   6 years ago
What you mean by expressions?

Vasista said:   7 years ago
The combination of minterms give the number of possible expressions.

2^n gives the number of possible values with n bits.
2^(2^n) gives the answer.

In this case 2^4=16 and 2^16 = 65536.

Dhanya said:   7 years ago
How many minterms/maxterms possible = 2^n=2^4=16.

How many expressions/functions are possible = 2^2^4 =2^16 =6556.

Saurav sharma said:   8 years ago
According to the explanation: 2^2^4 = 2^16.

But actually, it has to be: 2^2^4 = 2^8.

So how it will be A?

Rishi Ram Panth said:   8 years ago
How is it A? Can you please explain?

Mega said:   8 years ago
The correct Answer is A.

Gaurang said:   9 years ago
The question here is a number of distinct boolean expressions, which are all min terms I suppose.

So, answer should be A.

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