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Digital Electronics

Digital Electronics
A gate is enabled when its enable input is at logic 0. The gate is

 NAND
 AND
 NOR
 none of these

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Digital Electronics
In simplification of a Boolean function of n variables, a group of 2m adjacent 1s leads to a term with

 n – m literals
 m + 1 literals less than the total number of variables
 m – 1 literals less than the total number of variables
 n + m literals

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Digital Electronics
The output of a NAND gate is low

 only when all the inputs are high
 only when at least one input is low
 only when all the inputs are low
 only when at least one input is high

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Digital Electronics
In a T flip-flop no of input circuit is

 2
 3
 4
 1

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Digital Electronics
How many NOR gates are required to obtain AND operation?

 1
 4
 2
 3

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Digital Electronics
ASCII code is a

 5-bit code
 7-bit code
 10-bit code
 8-bit code

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