Q.
The figure shows a combination of two NOT gates and a NOR gate.
The combination is equivalent to a
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AIEEEAIEEE 2012Semiconductor Electronics: Materials Devices and Simple Circuits
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Solution:
Truth table is as shown :
A
B
0
0
1
1
1
0
0
1
1
0
1
0
1
0
0
1
1
0
1
1
0
0
0
1
Thus the combination of two NOT gates and one NOR gate is equivalent to a AND gate.
| A | B | ||||
|---|---|---|---|---|---|
| 0 | 0 | 1 | 1 | 1 | 0 |
| 0 | 1 | 1 | 0 | 1 | 0 |
| 1 | 0 | 0 | 1 | 1 | 0 |
| 1 | 1 | 0 | 0 | 0 | 1 |