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Digital Electronics

Digital Electronics
In SSI, the number of gate circuits per chip is

 < 6
 < 12
 < 20
 < 25

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

  D FF.
  T FF.
  J-K FF.
  S-R FF.

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Digital Electronics
An AND gate will function as OR if

All the inputs are ‘0’
All the inputs to the gates are “1”
All the inputs and outputs are complemente'
Either of the inputs is “1”

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Digital Electronics
The decimal equivalent of hexadecimal number “BEED” is

 47,877
 none
 48,877
 48,777

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Digital Electronics
The AND-OR realization of a combinational circuit requires three 3-input AND gates and one 3-input OR gate. This circuit can be designed using

 four input NAND gates only
None of these
 three 3-input OR gates and one 3-input AND gate
 three 3-input NAND gates and one 3-input NOR gate

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Digital Electronics
When will be the output of an AND gate is HIGH if there are three inputs, A, B, and C ?

 A = 0, B = 0, C = 0
 A = 1, B = 0, C = 1
 A = 1, B = 1, C = 1
 A = 1, B = 1, C = 0

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