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Digital Electronics

Digital Electronics
A gate is inhibited when its inhibit input is at logic 1. The gate is

 NAND
 none of these
 OR
 AND

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Digital Electronics
Why encoder is used in the digital electronics ?

None of these
 It is used to separate address bus and data bus
 To convert coded information into non coded form
 To convert non coded information into coded form

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Digital Electronics
What is the minimum number of two-input NAND gates used to perform the function of 2-input OR gate?

 two
 four
 three
 one

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

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Digital Electronics
Excess-3 code is known as

Self-complementing code
Cyclic redundancy code
Weighted code
Algebraic code

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Digital Electronics
A digital voltmeter has a read out range from 0 to 999 counts, the resolution is

 0.01 V.
 1.1 V.
 1 V.
  1 mV.

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