as we know that the efficiency of a half wave rectifier ~=40.6% and that of a full wave rectifier is 81.2%,nearly double that of the HWR...so why this is so...the reason i know is that in HWR only one diode is used and due to rev.biasing it does not conduct so it looses the negative part and in FWR there are 2 diodes(center tapped and also bridge 2 diodes conduct at a time) so its efficiency also doubles....but my professor isn't satisfied with this he wants to know something else.........help needed