A resistor $\left(R=9.00 \times 10^{2} \Omega\right),$ a capacitor $(C=0.250 \mu \mathrm{F})$ and an inductor (L 5 2.50 H) are connected in series across a $2.40 \times 10^{2}-\mathrm{Hz}$ AC source for which $\Delta V_{\mathrm{max}}=1.40 \times 10^{2} \mathrm{V}$ Calculate (a) the impedance of the circuit, (b) the maximum current delivered by the source, and (c) the phase angle between the current and voltage. (d) Is the current leading or lagging the voltage?