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The capacitor shown below is initially charged to 12 V. If the switch closes at í = 0, determine; a. the initial value of the current ir, after the switch closes. Answer: 8 mA b. the time constant for the current after the switch closes. Answer: 3 ms c. the value of the current at 4 ms. Answer: 2.1 mA d. the time when the current has decreased to 5% of its initial value. Answer: 9 ms 1=0 2 µF: 1.5 kQ Figure 11

The capacitor shown below is initially charged to 12 V. If the switch closes at í = 0, determine; a. the initial value of the current ir, after the switch closes. Answer: 8 mA b. the time constant for the current after the switch closes. Answer: 3 ms c. the value of the current at 4 ms. Answer: 2.1 mA d. the time when the current has decreased to 5% of its initial value. Answer: 9 ms 1=0 2 µF: 1.5 kQ Figure 11

Introductory Circuit Analysis (13th Edition)
Introductory Circuit Analysis (13th Edition)
13th Edition
ISBN:9780133923605
Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
Chapter1: Introduction
Section: Chapter Questions
Problem 1P: Visit your local library (at school or home) and describe the extent to which it provides literature...
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The capacitor shown below is initially charged to 12 V. If the switch closes at í = 0, determine; a. the initial value of the current ir, after the switch closes. Answer: 8 mA b. the time constant for the current after the switch closes. Answer: 3 ms 1. c. the value of the current at 4 ms. Answer: 2.1 mA d. the time when the current has decreased to 5% of its initial value. Answer: 9 ms 1=0 2 µF 1.5 kQ Figure 11
Transcribed Image Text:The capacitor shown below is initially charged to 12 V. If the switch closes at í = 0, determine; a. the initial value of the current ir, after the switch closes. Answer: 8 mA b. the time constant for the current after the switch closes. Answer: 3 ms 1. c. the value of the current at 4 ms. Answer: 2.1 mA d. the time when the current has decreased to 5% of its initial value. Answer: 9 ms 1=0 2 µF 1.5 kQ Figure 11
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