question_answer

Using a suitable combination from a NOR, an OR and a NOT gate, draw circuits to obtain the truth table given below : (i)

A	B	\[\Upsilon \]
0	0	0
0	1	0
1	0	1
1	1	0

  (ii)

A	B	\[\Upsilon \]
0	0	1
0	1	1
1	0	0
1	1	1

Answer:

                    To obtain the truth table (i), the circuit consisting of a NOR gate and a NOT as in Fig. (a) can be used.                     To obtain the truth table (ii), the circuit consisting of an OR gate and a NOT gate as shown in Fig. (b) can be used.