. The two switches in the circuit shown below are synchronized. The switches have been closed for a long time before opening at t = 0. a) How many microseconds after the switches are open is the energy dissipated in the 60 kn resistor 25% of the initial energy stored in the 200 mH inductor? b) At the time calculated in part (a), what percentage of the total energy stored in the inductor has been dissipated? t = 0, 120 mA 40 kn ΚΩ t=0 200 mH 20 ΚΩ 60 ΚΩ • 30 ΚΩ

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. The two switches in the circuit shown below are synchronized. The switches have
been closed for a long time before opening at t = 0.
a) How many microseconds after the switches are open is the energy dissipated in
the 60 k n resistor 25% of the initial energy stored in the 200 mH inductor?
b) At the time calculated in part (a), what percentage of the total energy stored in the
inductor has been dissipated?
t = 0.
120 mA 40 kn
ΚΩ
t = 0
200 mH
Σ 20 ΚΩ
60 ΚΩ
• 30 ΚΩ
Transcribed Image Text:. The two switches in the circuit shown below are synchronized. The switches have been closed for a long time before opening at t = 0. a) How many microseconds after the switches are open is the energy dissipated in the 60 k n resistor 25% of the initial energy stored in the 200 mH inductor? b) At the time calculated in part (a), what percentage of the total energy stored in the inductor has been dissipated? t = 0. 120 mA 40 kn ΚΩ t = 0 200 mH Σ 20 ΚΩ 60 ΚΩ • 30 ΚΩ
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