Consider the circuit sketched above. The battery has emf ε = 86volts and negligible internal resistance. The inductance is L =0.50 H and the resistances are R1 = 12 and R2 = 9.0 . Use Figure21.29 to answer the following questions:
(b) After leaving the switch closed for a long time, it is openedagain. Just after it is opened, what is the current in R1?
