Problem 1: 1-1. In Figure 1-22a, what is the logic level that must be output to turn on the LED? High or Low? 1-2. In Figure 1-22b, what is the logic level that must be output to turn on the LED? High or Low? 1-3. In Figure 1-22a, which switch must be closed to turn on the LED? 1-4. In Figure 1-22b, which switch must be closed to turn on the LED? +V +V +V S1 S1 S2 S2 (а) (b) DHI

Introductory Circuit Analysis (13th Edition)
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ISBN:9780133923605
Author:Robert L. Boylestad
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Problem 1:
1-1. In Figure 1-22a, what is the logic level that must be output to turn on
the LED?
High or Low?
1-2. In Figure 1-22b, what is the logic level that must be output to turn on
the LED?
High or Low?
1-3. In Figure 1-22a, which switch must be closed to turn on the LED?
1-4. In Figure 1-22b, which switch must be closed to turn on the LED?
+V
+V
+V
S1
S1
S2
S2
(a)
(b)
DHI
Transcribed Image Text:Problem 1: 1-1. In Figure 1-22a, what is the logic level that must be output to turn on the LED? High or Low? 1-2. In Figure 1-22b, what is the logic level that must be output to turn on the LED? High or Low? 1-3. In Figure 1-22a, which switch must be closed to turn on the LED? 1-4. In Figure 1-22b, which switch must be closed to turn on the LED? +V +V +V S1 S1 S2 S2 (a) (b) DHI
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