Parsers
August 20, 2024GATE 1997
August 21, 2024GATE 2005-IT
| Question 10 |
A two-way switch has three terminals a, b and c. In ON position (logic value 1), a is connected to b, and in OFF position, a is connected to c. Two of these two-way switches S1 and S2 are connected to a bulb as shown below.
Which of the following expressions, if true, will always result in the lighting of the bulb ?
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Question 10 Explanation:
The bulb will be on when both the switch S1 and S2 are in same state, either OFF (or) ON:
From this we can clearly know that given is EX-NOR operation i.e.,
(S1⊙S2) = (S1⊕S2)’
From this we can clearly know that given is EX-NOR operation i.e.,
(S1⊙S2) = (S1⊕S2)’
Correct Answer: C
Question 10 Explanation:
The bulb will be on when both the switch S1 and S2 are in same state, either OFF (or) ON:
From this we can clearly know that given is EX-NOR operation i.e.,
(S1⊙S2) = (S1⊕S2)’
From this we can clearly know that given is EX-NOR operation i.e.,
(S1⊙S2) = (S1⊕S2)’