9 How many sates fidiading inverters are rered to mpleethe equation, x-A AB AB 1
ID: 3600059 • Letter: 9
Question
9 How many sates fidiading inverters are rered to mpleethe equation, x-A AB AB 18) D) 4 after it is simplified using Boolean algebra? B) 2 A) 1 -, 19) The NAND gate is referred to as a "universal. gate, because it, A) is used in all the countries of the world B) can be found in almost all digital circuits C) can be used to build all the other types of gates D) was the first gate to be integrated Figure 5-3 20) Which circuit in Figure 5-3 represents the NAND implementation of a NOR gate? A) Figure (A). B) Figure( B) C) Figure (C). 20) D) Figure (D) 21) Which circuit in Figure 5-3 represents the NAND implementation of an AND-OR f unction? D) Figure (D). 21) A) Figure (A). 22) Which circuit in Figure 5-3 represents the NAND implementation of an inverter? 23) The relationship between a NAND gate and a negative-OR gate is expressed by B) Figure (B). C) Figure (C) A) Figure (A) B) Figure (B). C) Figure (C). 22) D) Figure (D) A) AB A B B) AB-A C)A+B-A B 23) D) AB-A+B 24) Which circuit is the logical equivalent of the Reference Circuit? Reference Circuit A) Figure (A) B) Figure (B) C) Figure D) Figure (D) correct NAND logic implementation of the expression, X-ABC+ DE? 25) Which of the figures is the rc)Explanation / Answer
18:
Answer A: 1 gate
Explanation:
X = A + AB + A’B
= A + B(A+A’)
= A +B ; since A+A’ is 1
= A or B only 1 gate is enough
19:
Answer: C
Explanation:
NAND, NOR gates are known as universal gates since we can construct all the other gates using NAND or NOR gates.
20:
Answer: D (figure D)
Explanation:
Using De Morgan law AB = A’ + B’, The NOR gate can be implemented by usng NAND gate with the circuit in figure D
21:
Answer : B (Figure B)
Explanation:
If the inputs in the Figure A combined to each other, then the circuit will work as OR Gate
Figure B Gives the functioning of AND Gate
Figure C is equivalent for NOT gate (Inverter)
Figure D is equivalent for NOR Gate
22:
Answer : C (Figure C)
Explanation:
If the inputs in the Figure A combined to each other, then the circuit will work as OR Gate
Figure B Gives the functioning of AND Gate
Figure C is equivalent for NOT gate (Inverter)
Figure D is equivalent for NOR Gate
23:
Answer: Option B (AB)’ = (A’+ B’)
Explanation:
A Nand B = (AB)’
A NOR B = (A+B)’
According to De Morgan laws (AB)’ = A’+B’
24: Answer: B
Explanation:
Expression For reference circuit is AB + CD
Figure B expression is as follows:
( (AB)’ . (CD)’ )’ = ((AB)’)’ + ((CD)’)’ = AB +CD
25 : Answer C
Explanation:
Image is unclear; From what I can see is the ABC are NAND gated and DE are NAND Gated and given to negative input OR gate
The logical expression for the circuit would be ABC + DE which is the given expression; Hence C is the answer
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