The given single-phase full-wave half-controlled rectifier circuit is connected to a 120 V-60 Hz source. It is assumed that the load current Ia is continuous and the ripple content is neglected. The transformer's turns ratio is 1. Accordingly: a) Express the current drawn by the rectifier using the Fourier series, and determine the harmonic coefficient, displacement coefficient, and power coefficient. b) If the triggering angle ? = ?/2, find the DC value of the output voltage, the RMS value, the harmonic coefficient, displacement coefficient, and power coefficient.