In Fig. 30.11, suppose that and Initially there is no

Chapter 30, Problem 30.28

(choose chapter or problem)

In Fig. 30.11, suppose that \(\mathcal{E}=60.0 \mathrm{\ V}\), \(R=240\ \Omega\) and L = 0.160 H. Initially there is no current in the circuit. Switch \(\mathrm{S}_{2}\) is left open, and switch \(\mathrm{S}_{1}\) is closed. (a) Just after \(\mathrm{S}_{1}\) is closed, what are the potential differences \(v_{a b}\) and \(v_{b c}\)? (b) A long time (many time constants) after \(\mathrm{S}_{1}\) is closed, what are \(v_{a b}\) and \(v_{b c}\)? (c) What are \(v_{a b}\) and \(v_{b c}\) at an intermediate time when i = 0.150 A?

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