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Digital Electronics

Digital Electronics
If in a base b number system, 54/4=13, the base of the number is

 7
 8
 6
 9

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Digital Electronics
The Quine– McClusky method of minimization of a logic expression is a (i) graphical method (ii) algebraic method (iii) tabular method (iv) a computer-oriented algorithm The correct answers are

 (iii) and (iv)
 (i) and (ii)
 (i) and (iii)
 (ii) and (iv)

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Digital Electronics
All the integers and decimal numbers are represented by

 odd numbers
 even numbers
 whole numbers
 real numbers

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Digital Electronics
The output of a gate is HIGH when at least one of its inputs is LOW. It is true for

 OR
 NAND
 NOR
 X-OR

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Digital Electronics
Consider the following multiplication: (10w1z) × (15)10 = (y01011001)2 Which one of the following gives appropriate values of w,y and z?

 w = 0,y = 1,z = 1
 w = 1,y = 1,z = 1
 w = 0,y = 0,z = 1
 w = 1,y = 1,z = 0

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Digital Electronics
Which of the following is 2’s complement of +12?

 01110011
 00001000
 00001100
 00000011

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