Page 3 - Home Exercise Logic Gate_050719_Jawapan
P. 3
ii. Y = (A’ + B)’ + (B·C’)’
[4 marks]
A
B
Y
C
?
iii. Write the value for each stage of the logic diagram in Figure 1 below:
[2 marks]
A = 1, B = 0, C = 0
p
r
Figure 1
q
s
Figure 1
p : ________________
P = 0 ; q = 1 ; r = 0 ; s = 1
iv. Based on logic diagram above, write Boolean expression to represent the circuit.
[2 marks]
W = (AC + B) (B’ + C)
v. Write the truth table for the logic diagram in Figure 1.
[4 marks]
A B C AC B’ B’+C AC+B W
0 0 0 0 1 1 0 0
0 0 1 0 1 1 0 0
0 1 0 0 0 0 1 0
0 1 1 0 0 1 1 1
1 0 0 0 1 1 0 0
1 0 1 1 1 1 1 1
1 1 0 0 0 0 1 0
1 1 1 1 0 1 1 1
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