Forced Response of RC Circuit: Derivation and Solution

[Ammar w]

Homework Statement

what is the forced response for Rc cct. and how to derive it??

Homework Equations

I know that the forced response in RL cct. is :
i = cos (ωt - tan^-1

we start from :

Vm cos (ωt) = Ri + L

and

i = I am cos (ωt-θ)

Can anyone help please!

 

[Ammar w]

just give me the voltage of capacitor law.
I don't know how to start,

 

[gneill]

It's not clear from your description what it is you're trying to do. Are you trying to write and solve the differential equation for the current in a series RC circuit? Or do you just want the steady-state AC response (AC current given the AC driving voltage)? Something else?