Electronics and Communication Engineering - Digital Electronics - Discussion

Discussion Forum : Digital Electronics - Section 1 (Q.No. 11)
11.
For the gate in the given figure the output will be
1
A
A
Answer: Option
Explanation:

If A = 0, Y = 1 and A = 1, Y = 0 Therefore Y = A.

Discussion:
12 comments Page 1 of 2.

Reshmi said:   1 decade ago
Here the gate is XNOR. Output will be one when both inputs are same i,e, 00=1 and 11=1. Here 2nd input is always AND so zero.

So possibilities are A become 1 or 0. (if A=1, input 10=0 ie A' if A=0 input 00=1 since gate is xnor i.e A').

V Naga Pranavi said:   7 years ago
It is the XNOR gate. One input is A. Here the other input(say B) is 0. since it is grounded.
When A=0 B=0, O/p Y='1'.
when A=1 B=0 O/p Y='0';
i.e; Y=A'.
(8)

Anusha. Byravaram said:   8 years ago
If we take both inputs as 0 or both as 1, then the answer will be change.
Then why you have taken only 0 and 1,
1 and 0.?
(1)

Dhammapriy said:   8 years ago
Actually, when you tie one of the inputs of XNOR gate to logic 0 then XNOR gate behaves as a inverter.
(1)

VICKY said:   9 years ago
Formula XNOR = A(BAR) B(BAR) + AB.

So, from the given question: A (bar). 1 + A (0) = A(BAR).
(3)

M S Kamalanadhan said:   7 years ago
It is XNOR gate so when both ip's are same op is 1.
(1)

Raja said:   1 decade ago
It's actual not gate so a=0; y=1, a=1; y=0.

Ayush Kumar said:   8 years ago
Right answer is D because A^0^ + A.0 = A^.

Bhargav said:   5 years ago
Nice explanation, Thanks @V Naga Pranavi.

Vamsikrishna said:   1 decade ago
Why can't we choose option 'a'?


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