Active and reactive effect in AC circuit

[David331]

Homework Statement

Compute the active and reactive effect that is obtained in the load R2-C3.

Relevant Equations

P=RIe^2; Q=XIe^2

Hi, I am once again asking for help regarding a AC circuit problem. This time I need to compute reactive and active effect for z=R2+C3 in the below circuit. I have already computed u(t) from before so that solves half of the problem. I am unsure if I have done the calculations correct, not much if the number-computations are correct, but if the different formulas all make sense. And if the reactive effect can be negative?

 

[magoo]

The equations look OK to me.

If the reactive load is capacitive, then the reactive power will be negative. If you substitute an inductor for the capacitor, then the reactive load will be positive.

 

[David331]

Okay now I understand. Thanks!