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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

 both are same
 2.
 1.
 none

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Digital Electronics
A debouncing circuit is

A monostable MV
A bistable MV
An astable MV
A latch

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

 12
 4
 16
 8

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Digital Electronics
The 1’s complement of 11010111 is

 11101000
 10101000
 10101000
 00101000

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Digital Electronics
How many bits are required to store one BCD digit ?

 1
 4
 3
 2

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Digital Electronics
For checking the parity of a digital word, it is preferable to use

 NOR gates
 AND gates
 X-OR gates
 NAND gates

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