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Digital Electronics

Digital Electronics
For the design of a combinational circuit with four inputs using only NAND gates, the number of K-maps required for the simplification process is

 1
 2
 0
 4

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

NOT gate
None of these
OR gate
AND gate

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Digital Electronics
X = 01110 and Y = 11001 are two 5-bit binary numbers represented in 2’s complement format. The sum of X and Y in 2’s complement format using 6 bits is

 101001
 001000
 0001111
 100111

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Digital Electronics
Positive integers must be represented by

 None of these
 Both A and B
 unsigned number
 signed numbers

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Digital Electronics
The output of a gate is LOW if and only if all its inputs are HIGH. It is true for

 AND
 NOR
 NAND
 X-NOR

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Digital Electronics
Logic circuits are

 digital circuits
 none of these
 hybrid circuits
 analog circuits

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