Problem 3.335

A coil of inductance $L=2.0 \mu \mathrm{H}$ and resistance $R=1.0 \Omega$ is connected to a source of constant emf $\mathscr{E}=3.0 \mathrm{~V}$ (Fig. 3.96). A resistance $R_{0}=2.0 \Omega$ is connected in parallel with the coil. Find the amount of heat generated in the coil after the switch $S w$ is disconnected. The internal resistance of the source is negligible.