Question

+
+5v
N-
-
M -
X
Find the Boolean expression for Y and F in forms of X ,M and N​

Answer 1

Answer:

The NAND gate output will be low if the two inputs are

(A) 00 (B) 01

(C) 10 (D) 11

Ans: D

The NAND gate output will be low if the two inputs are 11

(The Truth Table of NAND gate is shown in Table.1.1)

X(Input) Y(Input) F(Output)

0 0 1

0 1 1

1 0 1

1 1 0

Table 1.1 Truth Table for NAND Gate

Q.2 What is the binary equivalent of the decimal number 368

(A) 101110000 (B) 110110000

(C) 111010000 (D) 111100000

Ans: A

The Binary equivalent of the Decimal number 368 is 101110000

(Conversion from Decimal number to Binary number is given in Table 1.2)

Table 1.2 Conversion from Decimal number to Binary number

2 368

2 184 --- 0

2 92 --- 0

2 46 --- 0

2 23 --- 0

2 11 --- 1

2 5 --- 1

2 2 --- 1

2 1 --- 0

0 --- 1

DE09 DIGITALS ELECTRONICS

2

Q.3 The decimal equivalent of hex number 1A53 is

(A) 6793 (B) 6739

(C) 6973 (D) 6379

Ans: B

The decimal equivalent of Hex Number 1A53 is 6739

(Conversion from Hex Number to Decimal Number is given below)

1 A 5 3 Hexadecimal

16³ 16² 16¹ 16° Weights

(1A53)16 = (1X16³) + (10 X 16²) + (5 X 16¹) + (3 X 16º)

= 4096 + 2560 + 80 + 3

= 6739

Q.4 ( ) ( ) 8 16 734 =

(A) C 1 D (

Explanation: