Please don\'t post the full solution - I have that. I have a question about the

Question

Please don't post the full solution - I have that. I have a question about the solution supplied here: https://www.chegg.com/homework-help/questions-and-answers/1019-find-vl-rms-circuit-fig-p1019-load-absorbs-2500-va-lagging-power-factor-08-b-construc-q28533339

Why did they get the angle theta from the impedance 1 + 2j ?

10.19 a) Find VL (rms) and ? for the circuit in Fig. P10.19 if the load absorbs 2500 VA at a lagging power factor of 0.8. b) Construct a phasor diagram of each solution obtained in (a) Figure P10.19 112 j2 ? 250V (rms Vi |Load

Explanation / Answer

We know conversion from rectangular form to polar form.

i.e a+jb=r< theta.

Where r= square root of (a^2+b^2).

theta=tan inverse of (b/a).

Therefore, 1+j2=tan inverse of(2/1).

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