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Digital Electronics

Digital Electronics
In an SR latch built from NOR gates, which condition is not allowed

 S=1, R=1
 S=0, R=0
 S=0, R=1
 S=1, R=0

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Digital Electronics
An AND gate can be imagined as

 switches connected in parallel
 switches connected in series
 transistors connected in paralle
 transistors connected in series

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Digital Electronics
In which code do the successive code characters differ in only one position?

 Gray code
 Hamming code
 8421 code
 XS-3 code

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Digital Electronics
ASCII code is a

 5-bit code
 7-bit code
 8-bit code
 10-bit code

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Digital Electronics
The complement of a function A is

 1
 Ā
 0
 A

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Digital Electronics
A switch-tail ring counter is made by using a single D-FF, the following circuit is

  S-R FF.
  T FF.
  D FF.
  J-K FF.

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