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Digital Electronics

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

 3
 6
 4
 5

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Digital Electronics
What is the gray code for the binary 101011?

 111110
 101011
 110101
 011111

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Digital Electronics
The inverter is ___________

None of these
OR gate
NOT gate
AND gate

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Digital Electronics
In digital systems, 1 byte is equal to ________ bit(s).

 4
 2
 8
 1

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Digital Electronics
An OR gate has 6 inputs. The number of input words in its truth table are

6
32
64
128

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Digital Electronics
The voltages corresponding to LOW and HIGH levels respectively are given below. Identify the voltages which correspond to negative logic system.

 0 V and 5 V
 1 V and 5 V
 5 V and 0 V
 –1.5 V and – 0.5 V

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