In a three phase half wave rectifier feeding resistive load, if the input source is a three phase 4 wire system and line to line voltage is 100 V. The supply frequency is 400 Hz. The ripple frequency at the output is:
(1) 400 Hz (2) 800 Hz
(3) 1200 Hz (4) None of these
(1) 400 Hz (2) 800 Hz
(3) 1200 Hz (4) None of these