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Digital Electronics

Digital Electronics
Which of the following gates cannot be used as an inverter?

 NAND
 AND
 X-NOR
 NOR

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Digital Electronics
A 10 bit A/D conveter is used to digitize an analog signal in the 0 to 6 volt. The maximum peak to ripple voltage that can be allowed in the D.C. supply voltage is

 10 mV.
  5.85 mV.
  6 mV.
 5 mV.

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Digital Electronics
Which is typically the longest: bit,byte,nibble,word?

 nibble
 word
 bit
 byte

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Digital Electronics
The maximum positive and negative numbers that can be represented in one’s complement using n-bits are respectively

 +(2n-1-1),-2n-1
 +2n-1,-(2n-1-1)
 None of these
 +(2n-1-1),-(2n-1-1)

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Digital Electronics
For 4 bit parallel addition, we need ________ half adder(s) and ________ full adder(s)

 0 and 4
 1 and 4
 0 and 3
 1 and 3

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Digital Electronics
8421 code is

 weighted code
 alphanumeric code
 non-weighted code
 self-complementing code

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