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Digital Electronics

Digital Electronics
How many numbers are used in the decimal number system?

None of these
 1 to 10
 0 to 10
 0 to 9

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Digital Electronics
The number A = 01110000 and B = 10101111 are in 2’s complement form .Addition of above two number is

 10101111
 11100000
 00011111
 011100001

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Digital Electronics
When will be the output of a NOT gate is HIGH ?

 the input is HIGH and LOW
 the input is HIGH
 the input is LOW
None of these

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Digital Electronics
The output of a gate is HIGH when at least one of its inputs is LOW. It is true for

 X-OR
 OR
 NOR
 NAND

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Digital Electronics
The number of parity bits in a 12-bit Hamming code is

 8
 5
 4
 6

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Digital Electronics
The logic expression A + B can be implemented by giving inputs A and B to a two-input

 NOR gate
 X-OR gate
 X-NOR gate
 NAND gate

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