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Digital Electronics

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

 1.
 none
 both are same
 2.

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Digital Electronics
NAND. gates are preferred over others because these

can be used to make any gate
provide maximum density in a chip.
have lower fabrication area
consume least electronic power

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Digital Electronics
What is the gray code for the binary 101011?

 110101
 111110
 011111
 101011

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Digital Electronics
The number of rows in the truth table of a 4-input gate is

 8
 4
 16
 12

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

 2
 1
 4
 3

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Digital Electronics
The main equation for a D flip flop is

 Q=0
 Q=D
 Q=D'
 Q=1

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