he windings of a large electromagnet have an inductance of 10.0 H and a resistance of 8.00 Ohm. The electromagnet is connected to the external EMF of 230 V. After electromagnet is switched on, how long does it take for the energy in the inductor to reach 50% of its final value? What is the final, steady value of the current that is attained after fairly long time. no unit check is required.