The subsequent problems, each of which is independent of the others, deal with the figure below,
If the NO button is up (not held down) while the NC switch is pressed and held down, and then the button is pressed and released several times (while the switch is still held down), what is the final value of Y (after the last button release, with the switch still held down)?
A. is definitely 1
B. is definitely 0
C. depends on the previous history of the switch and button states
Answer: B
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