From the research I have done, I believe I have fully grasped the concept of impedance -- my initial problem being is that I suspected it had to do alot with lenz' law, but no sources clearly stated one way or another. What I need is verification that I am correct or to be corrected. From what I understand, Impedance is expressed as a complex number, with regular resistance being the real part and reactance being the imaginary part. From what I have read, reactance is very much dependent on the concept set forth by lenz' law as it is the resistance to flow of current due to the application of lenz' law to inductive components such as actual inductors and transformers, OR capacitive components opposition to current flow due to their construction. I am almost certain there are many flaws in my understanding, so please correct me where I am wrong!