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Digital Electronics

Digital Electronics
What is the 2’s complement of 10110000?

 01010000
 10110000
 01001111
 10001110

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

 x+yz
 x+y
 y+xz
 x+xyz

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Digital Electronics
Which of the following gate is a two-level logic gate

EXCLUSIVE OR gate
NAND gate
NOT gate
OR gate

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

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Digital Electronics
The binary number designations of the rows and columns of the K-map are in

 XS-3 code
 binary code
 BCD code
 Gray 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
 both have same
 none
 2

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