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Digital Electronics

Digital Electronics
In the toggle mode a JK flip-flop has

 J = 0, K = 0.
 J = 1, K = 0.
 J = 0, K = 1.
 J = 1, K = 1.

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Digital Electronics
Switching circuits are

 hybrid circuits
 digital circuits
 analog circuits
 none of these

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Digital Electronics
Which of the logical operations is represented by the + sign in Boolean algebra ?

 NAND
 AND
 NOT
 OR

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Digital Electronics
If a counter having 10 flip flops is initially at 0, What count will if hold after 2060 pulses?

  000 000 1000.
  000 000 1100.
 000 000 1110.
 000 001 1100.

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Digital Electronics
When will be the output of an exclusive-OR gate is HIGH ?

 The inputs are equal
 All inputs are LOW
 The inputs are different
 All inputs are HIGH

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Digital Electronics
Simplified form of the function f = (x+y+xy)(x+z)

 x+xyz
 x+y
 y+xz
 x+yz

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