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Module 5. Digital techniques / Electronic instrument systems

What is the equivalent of this gate?

• = (NOT-A + NOT-B)
• = (A + B)NOT
• = (A.B)NOT

sasna asking:
• correct the answer.....

Community comments: 7

rajib
Posts: 8
26.08.2013 / 06:48

Answer is correct, please go through De Morgan's laws,

for reference :

http://www2.nau.edu/~sh295/EE110/deMorganproof.html

sasna
Posts: 20
27.08.2013 / 00:30

why not (A.B)NOT...???

dimky
Posts: 511
01.09.2013 / 10:45

Draw truth tables for all answers and compare them with truth table of NAND gate.

karmendra
Posts: 1
30.05.2017 / 22:43

Why not (A.B)NOT is a right answer. It's straight forward from the drawing. AND gate with a output inverted is (A.B)NOT gate

Shenoy
Posts: 1
30.08.2019 / 15:37

i agree with karmendra

Sokeros
Posts: 13
04.03.2020 / 11:22

I agree too. I think answer c is the correct answer.

Matteo Passatempi
Posts: 1
13.04.2023 / 12:48

the answer A is the correct boolean simbology for the drawing but it's not the equivalent one, so the correct answer is the A

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