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Question:

(i) Write the truth tables of the logic gates marked P and Q in the given circuit. (ii) Write the truth table for the circuit.

Solution:

a)uo,′P
Represent Not table
Q represent NOR gate
B
P Q
0 0 1
0 1 0
1 0 0
1 1 0
(ii) Truith table of 'Q' is same as the truth table for the circuit
(b) NOR gate are the combination of OR and NOT gate ;since this gates combination gives the to the formation of all gates like :NOT,AND .example both gates are formed out of NOR gate
a)and gate:-
(B) OR gate:-