Further, a voltage substantially equal to E will be induced between the center tap CT and {TAIL ~ the upper end B} of {HEAD ~ upper winding L2} 
Further , a voltage substantially equal to E will be induced between the center tap CT and { TAIL ~ the upper end B } of { HEAD ~ upper winding L2 }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD