a)

So we conclude that the total impedance is

Z_T = 87.2 + 60.6j Ω

b) We see from the second last line of our last answer that the phase angle is 35°.

c) Total line current:

We use

• V = IZ,
• the fact that the impedance is 106.2 ∠ 34.82°; and
• the fact that the voltage supplied is 12 V = 12 ∠ 0° V.

So