A single-phase motor with a rated output power of 40 kW at an efficiency of 80% and 0.6 lagging power factor is connected to an electrical power supply rated at 220 volt, 50Hz. The single-phase motor can be represented by a series resistor-inductor circuit as shown in Fig. 1a. (i) Find the input current to the motor. [5 marks] (ii) Find the values of the resistor ‘R’ and the inductor ‘L’ respectively. I cannot find the related formula in my notes, what am I supposed to do to solve this question?