Question
To get output for the following circuit, the correct choice for the input is,
-
A=1, B=0, C = 0
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A=1, B=1, C = 0
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A=1, B=0, C=1
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A=0, B=1, C=0
Solution
C.
A=1, B=0, C=1
Consider the figure below,
The resultant boolean expression of the above logic circuit is given by,
Y = (A+B).C
Using the inputs given in the options,
If A=0, B=0,C=0, we have
Y = (0+0).0
i.e., Y = 0
If A=1, B=1, C=0, then we have
Y = (1+1).0
i.e., Y = 1.0 = 0
If A=1, B=0, C=1, then
Y = (1+0).1
i.e., Y = 1.1 = 1
If A=0, B = 1, C =0, then
Y = (0+1).0
i.e., Y = 1.0
Y = 0
Therefore, output Y = 1 only when inputs A=1, B=0 and C=1.
