An rl circuit consists of a 44.0 ω resistor and a 2.20 mh inductor. find its impedance z at 60.0 hz and 10.0 khz. (enter your answers in ohms to at least four significant figures.)

In the circuit, the switch s has been open for a long time and r = 125 kohm. it is then suddenly closed. (a) determine the time constant before the switch is closed. s (b) determine the time constant after the switch is closed. _ s (c) let the switch be closed at t = 0. find the current in the switch as a function of time. (use t for time. express your answer in milliamps and seconds.) i(t) =_