Answer:
(a) The circuit of Fig. (a) represents OR gate
Logic symbol of OR gate.
Truth table of OR gate
(b) The circuit of Fig. (b) represents AND gate.
Logic symbol of AND gate.
Truth table of AND gate
Input
A
Input
B
Output
\[\Upsilon \]
0
0
0
0
1
1
1
0
1
1
1
1
Input
A
Input
B
Output
\[\Upsilon \]
0
0
0
0
1
0
1
0
0
1
1
1
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