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Digital Electronics

Digital Electronics
What is the minimum number of two-input NAND gates used to perform the function of 2-input OR gate?

 two
 four
 one
 three

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Digital Electronics
The output of a gate is LOW if and only if all its inputs are HIGH. It is true for

 NAND
 NOR
 AND
 X-NOR

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Digital Electronics
A + Ā is equal to

 1
 0
 Ā
 A

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Digital Electronics
A gate is enabled when its enable input is at logic 1. The gate is

 none of these
 NOR
 OR
 NAND

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Digital Electronics
Excess-3 code is known as

Self-complementing code
Cyclic redundancy code
Algebraic code
Weighted code

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Digital Electronics
An OR gate has 6 inputs. The number of input words in its truth table are

64
128
32
6

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