This question was previously asked in

ESE Electronics 2010 Paper 2: Official Paper

- 5
- 3
- 2
- 0

Option 4 : 0

Free

CT 3: Building Materials

3014

10 Questions
20 Marks
12 Mins

Concept:

1 + x = 1

1 . x = x

0 + x = x

0 . x = 0

{Where x = don’t carry; i.e. x = 0 / 1}

Calculation:

Let,

y = x + xyÌ… + xyÌ…z

= x [1 + yÌ… + yÌ…z]

= x

∴ Zero NOR gates required.

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