. In the adjacent figure each of the two capacitors mounted in parallel has a value C, the resistor has a value R, and the power supply has value ɛ= 25 V. Upon closing the key S the charging process of the two capacitors starts. The initial value of the electric current was I0 = 25 mA, as shown in the table below, then the electric current decreased until it vanished at . The table below shows the values of the electric current every two seconds as measured by the ammeter A. a) Determine the value R of the resistor in k ohm units. b)Plot the I-t graph (electric current versus time). c)Determine the circuit constant time from the I-t graph. d)Determine the value C of each capacitor in micro F units. e)Complete the table by evaluating the electric charge q(t) on each capacitor at the moments .
. In the adjacent figure each of the two capacitors mounted in parallel has a value C, the resistor has a value R, and the power supply has value ɛ= 25 V. Upon closing the key S the charging process of the two capacitors starts. The initial value of the electric current was I0 = 25 mA, as shown in the table below, then the electric current decreased until it vanished at . The table below shows the values of the electric current every two seconds as measured by the ammeter A. a) Determine the value R of the resistor in k ohm units. b)Plot the I-t graph (electric current versus time). c)Determine the circuit constant time from the I-t graph. d)Determine the value C of each capacitor in micro F units. e)Complete the table by evaluating the electric charge q(t) on each capacitor at the moments .
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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| . In the adjacent figure each of the two capacitors mounted in parallel has a value C, the resistor has a value R, and the power supply has value ɛ= 25 V. Upon closing the key S the charging process of the two capacitors starts. The initial value of the electric current was I0 = 25 mA, as shown in the table below, then the electric current decreased until it vanished at . The table below shows the values of the electric current every two seconds as measured by the ammeter A. a) Determine the value R of the resistor in k ohm units. b)Plot the I-t graph (electric current versus time). c)Determine the circuit constant time from the I-t graph. d)Determine the value C of each capacitor in micro F units. e)Complete the table by evaluating the electric charge q(t) on each capacitor at the moments . |
Transcribed Image Text:A
C
R
Transcribed Image Text:6 8 10
13 10
t (s)
2
4
12
14
16
18
I (mA)
25
20
16
8
7
5
4
3
q (mC)
40 55
66 75
89
97
8 |으
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