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Digital Electronics: Assignment Notes | Study Solid State Physics, Devices & Electronics - Physics

Document Description: Digital Electronics: Assignment for Physics 2022 is part of Digital Electronics for Solid State Physics, Devices & Electronics preparation. The notes and questions for Digital Electronics: Assignment have been prepared according to the Physics exam syllabus. Information about Digital Electronics: Assignment covers topics like and Digital Electronics: Assignment Example, for Physics 2022 Exam. Find important definitions, questions, notes, meanings, examples, exercises and tests below for Digital Electronics: Assignment.

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Q.1. (a) Convert (1101101)2 to decimal number.
(b) Convert (11101.011)2 to decimal number.
(c) Convert decimal number 12 to binary number.
(d) Convert decimal number 0.3125 to binary number.
(e) Convert octal number (2374)8 to decimal number.
(f) Convert octal number (0.325)8 to decimal number.
(g) Convert decimal number 359 to octal number.
(h) Convert each of the following octal numbers to binary numbers.
(i) 138 (ii) 258 (iii) 478 (iv) 1708 (v) 7528 (vi) 52768 (vii) 37.128
(i) Represent each of the following binary numbers by its octal equivalent:
(a) 1101012 (b) 1011110012 (c) 10111001102 (d) 1001101.10112
(j) Convert binary numbers to hexadecimal number.
(a) 11001010010101112 (b) 1111110001011010012 (c) 1110011000.1112
(k) Determine the binary numbers for the following hexadecimal numbers:
(a) 10A416 (b) CF8316 (c) 974216 (d) D2E.816
(l) Convert the following hexadecimal numbers to decimal.
(a) 1C16 (b) A8516
(m) Convert (a) E 516 and (b) B 2F816 to decimal.
(n) Convert 65010 to hexadecimal by repeated division by 1610.
(o) Find 1's compliment and 2's compliments of binary number (10101), (10111) and (111100).

(a)
Digital Electronics: Assignment Notes | Study Solid State Physics, Devices & Electronics - Physics
1 x 64 +1 x 32 + 0 x 16 +1 x 8 +1 x 4 + 0 x 2 +1 x 1 = 64 + 32 + 0 + 8 + 4 + 0 +1 = 10910
(b) (16 + 8 + 4 + 1) . ( 0.25 + 0.125) = 29.37510
(c)
Digital Electronics: Assignment Notes | Study Solid State Physics, Devices & Electronics - Physics
(d) Step 1 (0.3125 x 2 = 0.625 → carry = 0 ( MSB))
Step 2 (0.625 x 2 = 1.25 → carry = 1
Step 3 (0.25 x 2 = 0.50 → carry = 0
Step 4 (0.50 x 2 = 1.00 → carry = 1 ( LSB) → (0.0101)2)
(e)
Digital Electronics: Assignment Notes | Study Solid State Physics, Devices & Electronics - Physics
2 x 512 + 3 x 64 + 7 x 8 + 4 x 1 = 127610
(f)
Digital Electronics: Assignment Notes | Study Solid State Physics, Devices & Electronics - Physics
3 x 0.125 + 2 x 0.015625 + 5 x 0.001953 = 0.41601510
(g)
Digital Electronics: Assignment Notes | Study Solid State Physics, Devices & Electronics - Physics
(h)
Digital Electronics: Assignment Notes | Study Solid State Physics, Devices & Electronics - Physics 

Digital Electronics: Assignment Notes | Study Solid State Physics, Devices & Electronics - Physics
(i) Digital Electronics: Assignment Notes | Study Solid State Physics, Devices & Electronics - Physics
(j)
Digital Electronics: Assignment Notes | Study Solid State Physics, Devices & Electronics - Physics 

Digital Electronics: Assignment Notes | Study Solid State Physics, Devices & Electronics - Physics
(k)
Digital Electronics: Assignment Notes | Study Solid State Physics, Devices & Electronics - Physics

Digital Electronics: Assignment Notes | Study Solid State Physics, Devices & Electronics - Physics
(l)
Digital Electronics: Assignment Notes | Study Solid State Physics, Devices & Electronics - Physics
Digital Electronics: Assignment Notes | Study Solid State Physics, Devices & Electronics - Physics
(m) (a) E516 = E x 16 + 5 x 1 = 14 x 16 +5 x 1 = 224 +5 = 22910
(b) B2F816 = B x 4096 + 2 x 256 + F x16 + 8 x 1
= 11 x 4096 + 2 x 256 + 15 x 16 + 8 x 1
= 45056 + 512 + 240 + 8 = 4581610
(n)
Digital Electronics: Assignment Notes | Study Solid State Physics, Devices & Electronics - Physics
Therefore, 65010 = 28A16.
(o) Digital Electronics: Assignment Notes | Study Solid State Physics, Devices & Electronics - Physics


Q.2. For the logic circuit shown in figure, the input conditions (A, B, C) are given. In each case find output X.

Digital Electronics: Assignment Notes | Study Solid State Physics, Devices & Electronics - Physics(a) 1,0,1
(b) 0,0,1
(c) 1,1,1
(d) 0,1,1

XOR is inequality comparator and XNOR is equality comparator. In AND gate output will be high when all the input is 1.
(a) (A, B,C) = (1, 0,1) ; U1 = 1, U2 = 0 ⇒ U3 = 0
(b) (A, B,C) = (0,0,1) ; U1 = 0 , U2 = 0 ⇒ U3 = 0
(c) (A, B, C) = (1,1,1) ; U1 = 0 , U2 = 1 ⇒ U3 = 0
(d) (A, B, C) = ( 0,1,1) ; U1 = 1 , U2 = 1 ⇒ U3 = 1


Q.3. In each case find output Boolean expression.

Digital Electronics: Assignment Notes | Study Solid State Physics, Devices & Electronics - Physics
Digital Electronics: Assignment Notes | Study Solid State Physics, Devices & Electronics - Physics
Digital Electronics: Assignment Notes | Study Solid State Physics, Devices & Electronics - Physics
Digital Electronics: Assignment Notes | Study Solid State Physics, Devices & Electronics - Physics

Digital Electronics: Assignment Notes | Study Solid State Physics, Devices & Electronics - Physics
Digital Electronics: Assignment Notes | Study Solid State Physics, Devices & Electronics - Physics


Q.4. Find the output of combinational circuit shown in figure below.

Digital Electronics: Assignment Notes | Study Solid State Physics, Devices & Electronics - Physics

Digital Electronics: Assignment Notes | Study Solid State Physics, Devices & Electronics - PhysicsDigital Electronics: Assignment Notes | Study Solid State Physics, Devices & Electronics - Physics
Digital Electronics: Assignment Notes | Study Solid State Physics, Devices & Electronics - Physics


Q.5. Consider the digital circuit shown below in which the input C is always low (0).

Digital Electronics: Assignment Notes | Study Solid State Physics, Devices & Electronics - PhysicsWrite the truth table for the circuit shown in figure.

Digital Electronics: Assignment Notes | Study Solid State Physics, Devices & Electronics - Physics
The truth table for the circuit can be written as
Digital Electronics: Assignment Notes | Study Solid State Physics, Devices & Electronics - Physics


Q.6. Write the truth table for the circuit shown in figure.
Digital Electronics: Assignment Notes | Study Solid State Physics, Devices & Electronics - Physics

Digital Electronics: Assignment Notes | Study Solid State Physics, Devices & Electronics - Physics
Digital Electronics: Assignment Notes | Study Solid State Physics, Devices & Electronics - Physics


Q.7. Using basic gates  implement the truth table?

Digital Electronics: Assignment Notes | Study Solid State Physics, Devices & Electronics - Physics

Digital Electronics: Assignment Notes | Study Solid State Physics, Devices & Electronics - PhysicsDigital Electronics: Assignment Notes | Study Solid State Physics, Devices & Electronics - Physics


Q.8. To implement the function f = (x + z) Digital Electronics: Assignment Notes | Study Solid State Physics, Devices & Electronics - Physics how many two input NOR gate would require. 

f = ( x + z ) Digital Electronics: Assignment Notes | Study Solid State Physics, Devices & Electronics - Physics
Digital Electronics: Assignment Notes | Study Solid State Physics, Devices & Electronics - Physics

Digital Electronics: Assignment Notes | Study Solid State Physics, Devices & Electronics - Physics
So, 4 NOR gate is required.


Q.9. Find the minimized expression for Boolean function
f(a, b, c, d) = ∑m (0, 2, 3, 5, 7, 8, 9,10,11) + ∑dc (4,15)

Digital Electronics: Assignment Notes | Study Solid State Physics, Devices & Electronics - Physics Digital Electronics: Assignment Notes | Study Solid State Physics, Devices & Electronics - Physics
Digital Electronics: Assignment Notes | Study Solid State Physics, Devices & Electronics - Physics


Q.10. A function with don’t cares is as follows:
g (X , Y , Z) =∑m (5, 6)+∑dc (1, 2, 4)
For above function consider following expression
(1)  Digital Electronics: Assignment Notes | Study Solid State Physics, Devices & Electronics - Physics
(2) Digital Electronics: Assignment Notes | Study Solid State Physics, Devices & Electronics - Physics
(3) Digital Electronics: Assignment Notes | Study Solid State Physics, Devices & Electronics - Physics
(4) Digital Electronics: Assignment Notes | Study Solid State Physics, Devices & Electronics - Physics
Which of the above expressions are solution for g.

Digital Electronics: Assignment Notes | Study Solid State Physics, Devices & Electronics - Physics
So expressions (1), (2) and (4) are solutions for g.

The document Digital Electronics: Assignment Notes | Study Solid State Physics, Devices & Electronics - Physics is a part of the Physics Course Solid State Physics, Devices & Electronics.
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