Question: The inductor has a reactance of 70 ohms and an inductance of 210 mH. A 30-ohm resistor and a capacitor whose reactance is 120 ohms are also in the circuit. The RMS current in the circuit is 2.0 A.
1- What is the peak magnetic energy in the inductor?
Please show the work for the calculation so I can understand what I'm doing. Thanks!