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Digital Electronics

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

 three
 four
 two
 one

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Digital Electronics
NAND. gates are preferred over others because these

have lower fabrication area
consume least electronic power
provide maximum density in a chip.
can be used to make any gate

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Digital Electronics
The inputs of a NAND gate are connected together. The resulting circuit is ___________.

AND gate
None of these
OR gate
NOT gate

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Digital Electronics
The following code is not a BCD code.

 XS-3 code
 all of these
 Gray code
 8421 code

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Digital Electronics
An n variable K-map can have

 n2 cells
  nn cells
 n2n cells
 2n cells

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Digital Electronics
An 8-square eliminates

 2 variables
 4 variables
 3 variables
 8 variables

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