Current has been flowing in this circuit for a long time. At time t=0 a wire is connected between points a and b. (a.) what is the initial current in the wire between a and b? (b.) What is the final value of this current? (c.) How many microseconds after the wire is attached will the current through the wire be 210 A? 220 V 1Ω ww b 12 Ω 2 mH 60 Ω 15 mH
Current has been flowing in this circuit for a long time. At time t=0 a wire is connected between points a and b. (a.) what is the initial current in the wire between a and b? (b.) What is the final value of this current? (c.) How many microseconds after the wire is attached will the current through the wire be 210 A? 220 V 1Ω ww b 12 Ω 2 mH 60 Ω 15 mH
Introductory Circuit Analysis (13th Edition)
13th Edition
ISBN:9780133923605
Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
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Transcribed Image Text:Current has been flowing in this circuit for a long time. At time t=0 a wire is
connected between points a and b. (a.) what is the initial current in the wire
between a and b? (b.) What is the final value of this current? (c.) How many
microseconds after the wire is attached will the current through the wire be 210
A?
220 V
+
1Ω
a
b
:12 0
Ω
2 mH
: 60 Ω
15 mH
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Step 1: what is given and what to do:
VIEWStep 2: a. Determining the currents flowing through the inductors just before the wire is connecting.
VIEWStep 3: Determining the initial current in the wire between a and b.
VIEWStep 4: b. Determining the final value of the current, i.
VIEWStep 5: c. Determining the expression of the current, i1(t) for t > 0.
VIEWStep 6: Determining the expression of the current, i2(t) for t > 0.
VIEWStep 7: Determining the expression of the current, i(t) for t > 0.
VIEWStep 8: Determining the time after the wire is attached will the current through the wire be 210 A.
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