Working with resonant circuits and when Xl = Xc the circuit is purely resistive. What I am having a problem picturing is what happens at f1 and f2. One is capacitive f1 and one is inductive f2. Somehow I can't work my head around why. How does raising or lowering the frequency from resonance cause the phase angle to become capacitive or inductive? Raising or lowering either the value of C or L will do the same thing. Sorry I just can't picture what it does to the phase angle. Time to play with LTS I guess...