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Q. Which one of the entries given in the truth table is true for the following logic circuit?

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Entry No. Input A Input B Output Y
1. 0 0 1
2. 0 1 0
3. 1 0 1
4. 1 1 0

Semiconductor Electronics: Materials Devices and Simple Circuits

Solution:

When the inputs of a AND gate are shorted, then there are two conditions arise:
(i) When the input is 0 , then the output is $0 .$
(ii) When the input is $1,$ then the output is $1 .$
Hence, by using above two conditions, the output is 0 for the given logic circuit. When $A=0, B=1$
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