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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

 none
 both are same
 1.
 2.

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Digital Electronics
A gate is inhibited when its inhibit input is at logic 1. The gate is

 AND
 none of these
 NAND
 OR

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Digital Electronics
To get an excess-3 code from BCD code

 0110 is added
 0011 is added
 0110 is subtracted
 0011 is subtracted

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Digital Electronics
A bubbled NAND gate is equivalent to a

 NAND gate
 OR gate
 NOR gate
 X-OR gate

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Digital Electronics
An 8 × 4 ROM contains a decoder of size

 3 × 8
 8 × 8
 8 × 4
 3 × 4

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Digital Electronics
The output of a logic gate is 1 when all its inputs are at logic 1. The gate is either

 an AND or a NOR
 a NAND or a NOR
 an AND or an OR
 an OR or an X-OR

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