Answer:
Step-by-step explanation:
Given that:
v(t) = 339.4 sin(377t + 90°) V
i(t) = 5.657 sin (377t + 60°) A
v = 339.4 ∠ 90°

i = 5.657∠60°

The phase difference
= 30
The average power
can be expressed as:



The reactive power Q is as follow;


Q = 479.99 VAR
The complex power S = P + jQ
The complex power S = 831.38 W + j479.99 VAR