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Digital Electronics

Digital Electronics
9’s complement of 52784630 is

 48225469
 47215369
 57316379
 58326479

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Digital Electronics
In which of the following codes do the successive characters differ in only 1-bit position?

 2421 code
 cyclic code
 binary code
 8421 code

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Digital Electronics
In the boolean algebra, a variable has ________ different state(s)/value(s).

 2
 1
 3
 4

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Digital Electronics
A + Ā is equal to

 1
 A
 0
 Ā

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Digital Electronics
The decimal number 0.246 in binary is

 0.001101
 0.010111
 0.011011
 0.001111

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Digital Electronics
NOT gates are to be added to the inputs of which gate to convert it to a NOR gate?

 NAND
 OR
 AND
 X-NOR

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