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Solved Problems-14

The circuit was in steady state with the switch in position 1. Find the current i(t) for t > 0 if the switch is moved from position 1 to 2 at t = 0.
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When the switch is in position 1, steady-state exists and the initial current through the inductor is,
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After the switch is moved to position 2, the KVL gives, in Laplace transform,
Description: Description: 8539.png 
or, Description: Description: 8545.png
Taking inverse Laplace transform,
Description: Description: 8551.png

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