A will be more positive than the voltage at terminal B. Like also, a voltage is induced in the secondary Ls of transformer T such that terminal 22 is now at {HEAD ~ a positive potential} relative to {TAIL ~ the potential} at terminal 20 
relative to
A will be more positive than the voltage at terminal B. Like also , a voltage is induced in the secondary Ls of transformer T such that terminal 22 is now at { HEAD ~ a positive potential } relative to { TAIL ~ the potential } at terminal 20
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH