A single phase, half-wave, controlled rectifier has 400 sin (314 t) as the input voltage and R as the load. For a firing angle of 60° for the SCR, the average output voltage is

(a) 240/π (b) 400/π (c) 300/π (d) 200/π

(a) 240/π (b) 400/π (c) 300/π (d) 200/π