Solve Prob. 19 when the EMF (electromotive force) is acting from 0 to only. Can you do this just by looking at Prob. 19, practically without calculation?

Data from Prob. 19

Using Laplace transforms, find the currents i₁(t) and i₂(t) in Fig. 148, where v(t) = 390 cos t and i₁(0) = 0, i₂(0) = 0. How soon will the currents practically reach their steady state?

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80 82 v(t) ll 2H 4 H Network i(t) -i;(t) 40 -ig(t) 20 4. 10 -20 -40 Currents 6.