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Digital Electronics

Digital Electronics
What is the minimum number of NAND gates required to realize an X-OR gate?

 5
 6
 4
 3

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Digital Electronics
The number of cells in a 6 variable K-map is

 64
 12
 36
 6

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Digital Electronics
The base of the number system for the addition operation 24 + 14 = 41 to be true is

 6
 7
 5
 8

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Digital Electronics
Which one of the following is 2’s complement of -68?

 01111100
 10111100
 11000100
 00111100

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Digital Electronics
The output of a logic gate is 1 when all its inputs are at logic 0. The gate is either

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

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Digital Electronics
Which of the following is 2’s complement of +12?

 00000011
 01110011
 00001000
 00001100

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