How Do You Calculate Resistance and Current in a Parallel AC Circuit?

[avinash patha]

a non -inductive resistor is connected in series with a capacitor of 100micro farads cap. across 200v,50 hz mains .the pot diff across the resistor is 150v .find the value of resistance &the value of current taken from the mains if the resistor were connected in ||
with the capacitor instead of in series.

which formula we should use here

 

[negitron]

Is this homework? I think it is. What effort have you put into solving the problem? How would you re-write the problem in equation form? What component characteristics do you need to solve for?