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Digital Electronics

Digital Electronics
Logic circuits are

 analog circuits
 digital circuits
 hybrid circuits
 none of these

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

  6.
  10.
 12.
 24.

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Digital Electronics
For the design of a combinational circuit with four inputs using only NAND gates, the number of K-maps required for the simplification process is

 1
 0
 4
 2

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Digital Electronics
The codes in which each successive code word differs from the preceding one in only one bit position are called

 self-complementing codes
 sequential codes
 cyclic codes
 BCD codes

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Digital Electronics
Why small bubble is given on the output of the NAND gate symbol ?

 Tristate
 Open collector output
None of these
 Output is inverted

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Digital Electronics
8421 code is

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

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