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Digital Electronics

Digital Electronics
In Boolean algebra A.A is equal to

 1
 A
 2A
 A²

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

 NAND
 OR
 AND
 none of these

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Digital Electronics
The boolean algebra is mostly based on

 Boolean theorem
 De Morgans theorem
 Standard theorem
 De Morpans theorem

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Digital Electronics
What is the minimum number of two-input NAND gates used to perform the function of 2-input OR gate?

 four
 three
 two
 one

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Digital Electronics
A half adder has

 1 input and 2 outputs
 1 input and 1 output
 2 inputs and 1 outputs
 2 inputs and 2 output

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

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