I have to explain where I would use these. I have done the assignment but my lecturer wants a technical conclusion that would explain the use of these.

I was going to put something like,

polar notation would give a magnitude and angle, the magnitude is the current in the circuit. the angle would allow you to figure out the reactive components. the hypoteneuse in a triangle (below) would be the impedance. the adjacent would be the resistance and the opposite would be reactive component. this is how I understand it. this should give the total impedance, along with the voltage the current could be calculated. this is the magnitude. then the calculation for the phase angle. im otherwise not to sure about what to put. I have to have a technical conclusion. I cant understand why I would have to convert from one to the other. any help on that would be great!!!!

thanks

simon