A series circuit consists of a 0.55 H inductor with an internal resistance of 8.0 Ω connected in series with a 4-Ω resistor, a switch, and a 12 V battery.(a) When the switch is closed, what is the initial current through the 4-Ω resistor?(b) After the switch has been closed, what is the maximum current in the 4-Ω resistor?