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Digital Electronics

Digital Electronics
How many flip flops are required to build a binary counter circuit to count from 0 to 1023?

 12.
  6.
 24.
  10.

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Digital Electronics
What is the logic which controls a stair case light associated with two switches A and B located at the bottom and top of the stair case respectively?

 OR
 X-NOR
 AND
 X-OR

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

 10
 12
 6
 9

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Digital Electronics
The XS-3 code is a

 weighted code
 self-complementing code
 error-correcting code
 cyclic code

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Digital Electronics
What is the 2’s complement of 10110000?

 10001110
 01010000
 01001111
 10110000

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Digital Electronics
1 kb represents

 1024 bytes
 1000 bytes
 10,000 bytes
 100 bytes

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