Digital Electronics
The output of a NOR gate is high

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

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Digital Electronics
Which of the following notations have two representations of zero? (I) 1’s complement with radix of number being 2 (II) 7’s complement with radix of number being 8 (III) 9’s complement with radix of number being 10 (IV) 10’s complement with radix of number being 10 Select the correct answer using the codes given below:

 (I) & (III)
 (I), (II) & (III)
 (II), (III) & (IV)
 (I), (II) & (IV)

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