A $120 - \mathrm { mH }$ Inductor Is in Series with A

Short Answer

A $120 - \mathrm { mH }$ inductor is in series with a $20 - \Omega$ resistor and a variable capacitor that can range from $0.110 \mu \mathrm { F }$ to $0.400 \mu \mathrm { F }$ .
(a) What is the range of possible resonance frequencies?
(b) If the power supply is a $24 - \mathrm { V }$ rms source, what rms current flows at resonance?