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Digital Electronics

Digital Electronics
Positive integers must be represented by

 None of these
 unsigned number
 Both A and B
 signed numbers

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Digital Electronics
The most suitable gate to check whether the number of 1s in a digital word is even or odd is

 NOR
 AND, OR, and NOT
 NAND
 X-OR

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Digital Electronics
The momentary change in the output/state of the flip-flops is known as

 unstable state
 inverter
 trigger
 tri-state

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Digital Electronics
A three-state buffer has the following output states

 High, Low, Float
 Both A and B
 1, 0, float
 Set, Reset, Halt

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Digital Electronics
The output of a logic gate is 0 when all its inputs are at logic 0. The gate is either

 a NAND or an X-OR
 an AND or a NOR
 an OR or an X-NOR
 an OR or an X-OR

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Digital Electronics
An X-OR gate gives a high output

 for odd decimal value.
 if it has even number of 0s
 if there are odd number of 1s
 if the decimal value of digital word is even

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