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Digital Electronics

Digital Electronics
The parity of the binary number 11011001 is

 odd
 not known
 even
 same as the number of zeros

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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

 5 mV.
 10 mV.
  5.85 mV.
  6 mV.

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Digital Electronics
An X-OR gate gives a high output

 if it has even number of 0s
 for odd decimal value.
 if there are odd number of 1s
 if the decimal value of digital word is even

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Digital Electronics
A device which converts 2421 code into 8421code is called a

 coder
 code decoder
 code encoder
 code converter

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Digital Electronics
NAND. gates are preferred over others because these

have lower fabrication area
can be used to make any gate
provide maximum density in a chip.
consume least electronic power

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Digital Electronics
Which one of the following is 2’s complement of -68?

 00111100
 10111100
 01111100
 11000100

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