Please I really need the right answers for this question with all the correct st

Question

Please I really need the right answers for this question with all the correct steps, formulas, and units as soon as possible, please. Thank You.

1) A solenoid can be treated as a series RL circuit. If such a solenoid driven by a 60-Hz, 15-V AC source has an inductance of 6.0 mH and a resistance of 4.0 . Part A:-  What is the phase constant where 90 90?  Part B:-  What is the current amplitude? Express your answer with the appropriate units.

Please I really need the right answers for this question with all the correct steps, formulas, and units as soon as possible, please. Thank You.

Explanation / Answer

a)

Inductive reactance

XL=2pifL=2pi*60*(6*10-3)=2.262 ohms

Phase Constant

o=tan-1(XL/R)=tan-1(2.262/4)=29.5o

b)

Impedance

Z=sqrt(42+2.2622)=4.6 ohms

Current amplitude

I=V/Z =15/4.6

I=3.264 A

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