1. The problem statement, all variables and given/known data In the shown circuit, the phase difference between the current and the voltage is 30 degrees, show how could you verify the conductance of the conductor so that the phase difference is 15 degrees. 2. Relevant equations tanθ= -Xc/R (the phase difference between the current and voltage in the RC ciruit) 3. The attempt at a solution That's my attemption: Is it correct? And is it the final simplification? Because I think the final result is complex.