When {HEAD ~ SW1} is in {TAIL ~ a closed position}, the current through inductor 14 is increasing in the direction of the battery 38 
is in
When { HEAD ~ SW1 } is in { TAIL ~ a closed position } , the current through inductor 14 is increasing in the direction of the battery 38
OTH HEAD HEAD HEAD HEAD HEAD REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH