1. The problem statement, all variables and given/known data Consider a circuit with a capacitor C in series an inductor of inductance L. Explain what happens when ω2LC=1, without calculations, using your knowledge and intuition. 2. Relevant equations 1/Z = 1/impedance = 1/(iωL) +1/(iωC) i is pure imaginary. 3. The attempt at a solution Well, unfortunately I have no intuition. I don't know what the quantity ω2LC represents, but it appears in the equation when you rearrange to find Z. So when I worked out Z, it was -1/(iωC+iωL) when the set condition is met. Which is a bit weird, because -ve resistance makes no sense...? I've obviously gone wrong somewhere!