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Digital Electronics

Digital Electronics
In the boolean algebra, a variable has ________ different state(s)/value(s).

 4
 2
 3
 1

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Digital Electronics
If in a base b number system, 54/4=13, the base of the number is

 6
 7
 8
 9

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Digital Electronics
Which of the following is not a transmission medium?

 Telephone lines.
 Microwave systems.
 Coaxial cables.
  Modem.

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Digital Electronics
When will be the output of an OR gate is LOW ?

 When all input is LOW
 When any input is HIGH
 When any input is LOW
 When all inputs are HIGH

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Digital Electronics
Which of these circuits will give yield carry with more delay 1. Carry look ahead adder 2. Ripple carry adder

 both are same
 2.
 none
 1.

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Digital Electronics
The binary code of (21.125)10 is

10101.01
10101.001
10100.001
10100.111

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