total energy? $6$: This circuit $($below left$)$ is used to receive AM radio signals $($which it will do efficiently if the radio wave frequency is the same as the resonant frequency of the circuit$).$ Use L $=100$H and C$1=80$ pF$.$ C$2$ is a variable capacitor. When you turn the radio dial, you are varying C$2$ so you can $$tune in$$ different radio stations. Determine the necessary range of C$2$ if the AM band extends from $53$