{HEAD ~ Apparatus} 1, wherein {TAIL ~ said third voltage} is applied to both said first and said second voltages 
wherein
{ HEAD ~ Apparatus } 1 , wherein { TAIL ~ said third voltage } is applied to both said first and said second voltages
HEAD HEAD HEAD HEAD HEAD OTH OTH REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH