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Digital Electronics

Digital Electronics
Maximum number in decimal that can be represented by 4 bits (binary) is

 7
 15
 4
 16

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Digital Electronics
If a Hexadecimal number needs to convert to binary. For each hexadecimal digit, there will be how many bits

 2
 8
 1
 4

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Digital Electronics
The number of Boolean functions that can be generated by n variables is equal to

2n
2n-1
22n
2n

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Digital Electronics
The most suitable gate for comparing two bits is

 AND
 X-OR
 OR
 NAND

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Digital Electronics
How many input and output required for demultiplexer ?

 number of selection inputs and one output
None of these
 one input and one output
 one input and many output

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

 two
 one
 four
 three

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