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Digital Electronics

Digital Electronics
What is the radix of octal number system ?

 8
 2
 10
 16

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Digital Electronics
The binary number 10101 is equivalent to decimal number ___________.

12
21
19
27

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Digital Electronics
The maximum positive and negative numbers which can be represented in two’s complement form using n bits are respectively,

 +(2n-1-1),-(2n-1-1)
 +(2n-1-1),-2n-1
 +2n-1,-2n-1
 +2n-1,-(2n-1+1)

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Digital Electronics
In SSI, the number of gate circuits per chip is

 < 20
 < 6
 < 12
 < 25

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Digital Electronics
Which of the following represents (E3)16 ?

 (2BC)16-(1DE)16
 (200)16-(11D)16
 (1CE)16+(A2)16
 (1BC)16-(DE)16

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Digital Electronics
X + X.Y = ?

 0
 1
 Y
 X

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