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Problem 113 of 132

RL Natural Response: Inductor Current

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The switch has been closed for a long time and opens at t=0t = 0. Find iLi_L at t=0.2 mst = 0.2\ \text{ms}, in milliamperes.

Is​4 mAR0​4.7 kΩt = 0L1 HR4.7 kΩ+−vR​iL​
mA

Answers within 2% are accepted. Units with SI prefixes work too, like 0.003 A or 3 mA. Use a minus sign for negative values.

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