The resistor, inductor, capacitor, and voltage source described in Exercise 31.14 are connected to form an L-R-C series circuit. (a) What is the impedance of the circuit? (b) What is the current amplitude? (c) What is the phase angle of the source volt- age with respect to the current? Does the source voltage lag or lead the current? (d) What are the voltage amplitudes across the resis- tor, inductor, and capacitor?