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Digital Electronics

Digital Electronics
A number system with radix 2 is known as

 Binary
 Hexadecimal
 Octal
 Decimal

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Digital Electronics
A demultiplexer is a

 N-to-N device
 1-to-N device
 1-to-1 device
 N-to-1 device

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Digital Electronics
For 4 bit parallel addition, we need ________ half adder(s) and ________ full adder(s)

 0 and 4
 1 and 3
 1 and 4
 0 and 3

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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

 2.
 none
 1.
 both are same

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Digital Electronics
The main criterion in the design of a digital circuit is reduction of

 cost
 weight
 size
 volume

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Digital Electronics
The AND-OR realization of a combinational circuit requires three 3-input AND gates and one 3-input OR gate. This circuit can be designed using

None of these
 three 3-input NAND gates and one 3-input NOR gate
 four input NAND gates only
 three 3-input OR gates and one 3-input AND gate

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