Semiconductor Electronics Materials Devices and Simple Circuits - Result Question 92

94. To get output 1 for the following circuit, the correct choice for the input is

[2016, 2012, 2010]

(a) $A=0, B=1, C=0$

(b) $A=1, B=0, C=0$

(c) $A=1, B=1, C=0$

(d) $A=1, B=0, C=1$

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Answer:

Correct Answer: 94. (d)

Solution:

  1. (d) The Boolen expression for the given combination is output $Y=(A+B) \cdot C$

Truth table

$A$ $B$ $C$ $Y=(A+B) \cdot C$
0 0 0 0
1 0 0 0
0 1 0 0
0 0 1 0
1 1 0 0
0 1 1 1
1 0 1 1
1 1 1 1
Hence, $A=1, B=0, C=1$


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