An $\mathrm{AC}$ circuit with resistance $\mathrm{R}$. inductance $\mathrm{I}$. and capacitance $\mathrm{C}$ are connected in series. The value of C is adjusted for resonance. State any three properties of this circuit which hold true for resonance only. (Give the properties in words or equations relating ${\mathrm{X}}_{\mathrm{L}}>{\mathrm{X}}_{\mathrm{c}}, \mathrm{Z}, \mathrm{R}, \mathrm{\varphi }$, power, etc.)