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Digital Electronics

Digital Electronics
In Boolean algebra A.A is equal to

 A²
 A
 2A
 1

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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
 an AND or a NOR
 an AND or an OR
 a NAND or a NOR

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Digital Electronics
The NAND gate is AND gate followed by ___________.

OR gate
AND gate
None of these
NOT gate

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

 cost
 size
 weight
 volume

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Digital Electronics
An n variable K-map can have

 2n cells
 n2 cells
 n2n cells
  nn cells

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Digital Electronics
In the boolean algebra, a variable has ________ different state(s)/value(s).

 1
 3
 2
 4

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