Switch a in the circuit shown has been open for a long time, and switch b has been closed for a long time. Switch a is closed at t remaining closed for 1 s, is opened again. Switch b is opened simultaneously, and both switches remain open indefinitely. Determine the expression for the inductor current i that is valid when (a) 0 < t < 1s and (b) t 1 s. 7.8 O and, after %3D t = 1 8 A t 1 a 20 0.8 Ω 10 V 30 2 H3 3Ωξ

Introductory Circuit Analysis (13th Edition)
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ISBN:9780133923605
Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
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NT PROBLEMS
SESSN
Switch a in the circuit shown has been open for
a long time, and switch b has been closed for a
long time. Switch a is closed at t =
remaining closed for 1 s, is opened again.
Switch b is opened simultaneously, and both
switches remain open indefinitely. Determine
the expression for the inductor current i that is
valid when (a) 0 <ts1sand (b) t > 1 s.
7.8
0 and, after
t = 1
8 A
t = 1
2Ω
0.8N
a
10V 30
2 H3i 303
6Ωξ
Transcribed Image Text:NT PROBLEMS SESSN Switch a in the circuit shown has been open for a long time, and switch b has been closed for a long time. Switch a is closed at t = remaining closed for 1 s, is opened again. Switch b is opened simultaneously, and both switches remain open indefinitely. Determine the expression for the inductor current i that is valid when (a) 0 <ts1sand (b) t > 1 s. 7.8 0 and, after t = 1 8 A t = 1 2Ω 0.8N a 10V 30 2 H3i 303 6Ωξ
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