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Digital Electronics

Digital Electronics
The number FF in base-16 systems will be equal to ________ in binary system.

 10101010
 11111111
 10011001
 11101110

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Digital Electronics
The way of representing numbers in the form of 0s and 1s is called as

 Zeros Notation
 Computer Notation
 Binary Notation
 Ones Notation

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Digital Electronics
A computer has a word length of 8 bits (including sign). It is required to determine the range of integers that can be stored in the computer. If 2’s complement is used to represent the numbers, then the range will be

 -256 to 255
 -256 to 256
 -128 to 127
 -128 to 128

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

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Digital Electronics
How many output is high of NOR GATE ?

 3
 1
 2
 4

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Digital Electronics
The effect of stray magnetic field on the actuating torque of a portable instrument is maximum when the operating field of the instrument and the stray fields are

  Parallel.
 Inclined at 60°.
 Inclined at 30°.
 Perpendicular.

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