Reactance: an Ac Series Circuit Consists of a Voltage Source

Essay

Reactance: An ac series circuit consists of a voltage source, an 880-Ω resistor, and an inductance L. (There is no capacitance in the circuit.) The current amplitude is 0.60 A, and the phase angle between the source voltage and the current has a magnitude of 41°.
(a) Does the source voltage lag or lead the current?
(b) What is the voltage amplitude of the source?