Question
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Answer (Detailed Solution Below)
Option 4 : S = 1, R = 1 / S = 1, R = 1
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Detailed Solution
सही उत्तर S = 1, R = 1 / S = 1, R = 1 है।
Key Points
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prepsnap.in • Part -AQuestion:
For a NOR-based SR latch, which input combination is forbidden because it drives the latch into an invalid state? / NOR-आधारित SR लैच हेतु कौन-सा इनपुट संयोजन निषिद्ध है क्योंकि यह लैच को अमान्य अवस्था में ले जाता है?
1.
S = 0, R = 0 / S = 0, R = 0
2.
S = 0, R = 1 / S = 0, R = 1
3.
S = 1, R = 0 / S = 1, R = 0
4.
S = 1, R = 1 / S = 1, R = 1
Correct Answer: S = 1, R = 1 / S = 1, R = 1
With NOR gates, S = 1, R = 1 forces both outputs to 0, violating the complementary Q/Q' requirement; when the inputs return to 0 the final state is unpredictable. (S = 0, R = 0 is the forbidden combination for a NAND latch, the classic trap.) / NOR गेटों में S=1, R=1 दोनों आउटपुट को 0 करता है; यह अमान्य अवस्था है।
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