Consider an RLC cirucit in AC as in figure.
simulate this circuit – Schematic created using CircuitLab
Suppose that I can change only the frequency of voltage. What frequency will maximize the dissipated power in the resistor?
I'm trying to use Thevenin's Theorem but I do not think that this is the right situation for it, since I'm not changing the resistor but the frequency. How should I approach this situation?