2kQ B 30V(t 0.5mF +)10V

Introductory Circuit Analysis (13th Edition)
13th Edition
ISBN:9780133923605
Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
Chapter1: Introduction
Section: Chapter Questions
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what's the capacitor voltage 1s after the switch moved to position c?

2kQ
B
30V(t
0.5mF
+)10V
Transcribed Image Text:2kQ B 30V(t 0.5mF +)10V
Expert Solution
Step 1

Consider the switch is connected to position A for a long time just before the switch is moved to position c. In this situation, the circuit is under the steady-state condition. Under the steady-state condition, the capacitor behaves as the open-circuit.

Draw the circuit diagram just before the switch is moved to the position c.

Electrical Engineering homework question answer, step 1, image 1

 

 

Step 2

From the circuit diagram, the current flowing through the resistor, 2 kΩ is zero as it is open-circuited. Thus, the voltage across the capacitor will be equal to the 30 V.

Electrical Engineering homework question answer, step 2, image 1

Step 3

Draw the circuit diagram when the switch is moved to position c.

Electrical Engineering homework question answer, step 3, image 1

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