engineering recuitment NIC NIELIT Scientist B 2023 Mock Test Digital Logic Combinational Circuits Encoder
A single bit comparator compares two numbers A and B and produces three outputs
Y1 (if A = B), Y2 (if A > B) and Y3(if A < B) as given below:
A. Y1 = A ⊙ B; Y2 =AB̅; Y3 = A̅ B
B. Y1 = A ⊕ B; Y2 = AB; Y3 = A̅ B̅
C. Y1 = A + B; Y2 =A ⊕ B; Y3 =A ⊙ B
D. Y1 = A̅ B̅ + AB; Y2 = AB̅; Y3 =A̅ B
Choose the correct answer from the options given below:
1
A and B only
2
A, B and C only
3
A, C and D only
4
A and D only