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Digital Electronics

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

  6.
  10.
 24.
 12.

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

 x+yz
 x+xyz
 y+xz
 x+y

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

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Digital Electronics
Which of the following codes is known as the 8421 code?

 XS-3 code
 BCD code
 Gray code
 ASCII code

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Digital Electronics
Which of these circuits have higher gate complexity 1. Carry look ahead adder 2. Ripple carry adder

 1
 none
 2
 both have same

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

 1,00,000 to 10,00,000
 > 1,00,000
 > 50,000
 50,000 to 99,999

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