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Digital Electronics

Digital Electronics
In an SR latch built from NOR gates, which condition is not allowed

 S=0, R=1
 S=0, R=0
 S=1, R=0
 S=1, R=1

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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

 none
 2.
 1.
 both are same

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Digital Electronics
What logic function is produced by adding an inverter to each input and output of an AND gate?

 NAND
 NOR
 OR
 X-OR

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Digital Electronics
An 8-square eliminates

 4 variables
 8 variables
 2 variables
 3 variables

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Digital Electronics
The output of a NAND gate is low

 only when all the inputs are high
 only when at least one input is high
 only when at least one input is low
 only when all the inputs are low

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Digital Electronics
9’s complement of 52784630 is

 57316379
 47215369
 58326479
 48225469

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