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-The AND Gate of Figure 7- 1 Has a HIGH

Question 5

Multiple Choice

-The AND gate of Figure 7- 1 has a HIGH output only when: A) an unknown frequency is present and the sample pulse input is LOW. B) an unknown frequency input pulse is HIGH and the sample pulse input is HIGH. C) the sample pulse input is HIGH and the unknown frequency input is LOW. D) an unknown frequency is present.
-The AND gate of Figure 7- 1 has a HIGH output only when:


A) an unknown frequency is present and the sample pulse input is LOW.
B) an unknown frequency input pulse is HIGH and the sample pulse input is HIGH.
C) the sample pulse input is HIGH and the unknown frequency input is LOW.
D) an unknown frequency is present.

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