Digital Electronics - Boolean Algebra and Logic Simplification - Discussion

Discussion Forum : Boolean Algebra and Logic Simplification - General Questions (Q.No. 11)
11.
An AND gate with schematic "bubbles" on its inputs performs the same function as a(n)________ gate.
NOT
OR
NOR
NAND
Answer: Option
Explanation:
No answer description is available. Let's discuss.
Discussion:
12 comments Page 1 of 2.

Sam said:   3 years ago
Agree, it's NOR.
(2)

Jayamala Pakhare said:   4 years ago
For bubbled input to AND gate;
A B (A' . B')
0 0 1
0 1 0
1 0 0
1 1 0


And for NOR gate;
A B (A+B)'
0 0 1.
0 1 0.
1 0 0.
1 1 0.

So bubbled AND will have the same output as that of NOR gate.
(2)

Chuiii said:   4 years ago
What is the correct answer for this problem and can someone provide a clear explanation?

Laks said:   6 years ago
Correct answer is NAND.

Bright Zambia said:   7 years ago
NOR gate is the answer.

Trupti said:   7 years ago
Answer is NAND gate.

Ram suraj said:   8 years ago
NO. The correct answer is NOR GATE.

We will see a example.

1. In case of bubbled inputs of AND gate,
A B A'.B'
0 0 1
0 1 0
1 0 0
1 1 0

2. In case of normal NOR gate,
A B (A+B)'
0 0 1
0 1 0
1 0 0
1 1 0

Hence, the answer is NOR GATE.
(1)

Athiban eswar said:   8 years ago
No, the correct answer is NAND.

Otherwise, I want an explanation for the given answer.
(1)

Kathiresan said:   8 years ago
I want an explanation for this question. Can anyone provide it?
(1)

Nitesh said:   10 years ago
AND inverted NOR.

OR inverted NAND.

NAND inverted OR.

NOR inverted AND.
(2)


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