Electronic Devices Question 280

Question: To get an output 1 from the circuit shown in the figure, the input must be

[UPSEAT 2002]

Options:

A) A=0,B=1,C=0

B) A=1,B=0,C=0

C) A=1,B=0,C=1

D) A=1,B=1,C=0

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Answer:

Correct Answer: C

Solution:

The Boolean expression for the given combination is output Y=(A+B).C The truth table is

A B C
0 0 0
1 0 0
0 1 0
0 0 1
1 1 0
0 1 1
1 0 1
1 1 1

Hence A=1 , B=0 , C=1



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