Electronics - Logic Gates - Discussion

Discussion Forum : Logic Gates - General Questions (Q.No. 2)
2.
If a signal passing through a gate is inhibited by sending a low into one of the inputs, and the output is HIGH, the gate is a(n):
AND
NAND
NOR
OR
Answer: Option
Explanation:
No answer description is available. Let's discuss.
Discussion:
18 comments Page 2 of 2.

Khushahmaddin said:   1 decade ago
In NAND Gate the frequency is low only when there is high input. But when low or dissimilar frequency input entered the output is high frequency.

i/p1 i/p2 AND NAND
----------------------------
0 0 0 1
0 1 0 1
1 0 0 1
1 1 1 0

NAND is NOT of AND gate.

Getaneh alehegn said:   1 decade ago
Of course, NAND gate also the answer but OR gate also satisfy the conditions. Because OR gate has low output if all inputs are low!

x y x+y
0 0 0
0 1 1
1 0 1
1 1 1
(1)

Izhar khan(jmi) said:   1 decade ago
NAND GATE is a universal gate and behave as a inverter so if input is low then output must be high.

Alizain said:   1 decade ago
Option B is correct.

PA1 said:   10 years ago
It is just simple. The NOT gate can be represented in NAND gate format.

Rita said:   10 years ago
Its is NAND gate but nt OR gate because:

NAND gate.
--------------

a b y

0 0 1 <---
0 1 1.
1 0 1.
1 1 o.

OR gate.
-----------

a b y.
0 0 0 <---
0 1 1.
1 0 1.
1 1 1.

If you observe both truth table you will get to know.

We are sending a low into one of the input and other may be one or zero but the output must be HIGH.

It's only in NANA GATE 111.
(2)

Naveed ABbas said:   9 years ago
If All inputs are high then NAND gate's output will be low.

Fembright said:   9 years ago
NOT gate inhibit the action of AND gate, and OR gate is not inhibit by any other gate so B is the answer.
(1)


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