The current flowing through a pure inductor (inductance 1 mH) is I = 15 cos 30 degrees. What is the first RMS and second average value of current for a complete cycle?
a) RMS = 15 A, Average = 7.5 A
b) RMS = 10 A, Average = 5 A
c) RMS = 7.5 A, Average = 3.75 A
d) RMS = 5 A, Average = 2.5 A
