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Digital Electronics

Digital Electronics
Temperature variation is a/an

 None
 Either Digital or Analog quantity
 Analog quantity
 Digital quantity

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Digital Electronics
The output of a logic gate is 1 when all its inputs are at logic 0. The gate is either

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

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

 NOR
 NAND
 OR
 AND

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Digital Electronics
The voltage levels for positive logic system

 must necessarily be 0 V and 5 V
 may be positive or negative
 must necessarily be negative
 must necessarily be positive

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Digital Electronics
The XS-3 code is a

 error-correcting code
 weighted code
 cyclic code
 self-complementing code

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Digital Electronics
The maximum positive and negative numbers that can be represented in one’s complement using n-bits are respectively

 +2n-1,-(2n-1-1)
 +(2n-1-1),-(2n-1-1)
 None of these
 +(2n-1-1),-2n-1

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