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Digital Electronics

Digital Electronics
The parity of the binary number 11011001 is

 same as the number of zeros
 odd
 even
 not known

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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.
  6 mV.
 5 mV.
  5.85 mV.

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Digital Electronics
If two numbers in excess-3 code are added and the result is less than 9, then to get equivalent binary

 0011 is subtracted
 0110 is added
 0110 is subtracted
 0011 is added

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Digital Electronics
For a code to be self-complementing, the sum of all its weights must be

 6
 12
 10
 9

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

 11000100
 01111100
 10111100
 00111100

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Digital Electronics
When will be the output of an AND gate is LOW ?

 When any input is LOW
 When all inputs are HIGH
 When all input is LOW
 When any input is HIGH

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