The definition of negative or opposing voltage with this coil is different than in normal electricity knowledge.
So what is the difference between +20,000 volts and ground state 0 volts ? ..........20,000 volts
So what is the difference between +20,000 volts and -20,000 volts ? ........ 0 volts , - voltage is opposing voltage , its not -20,000 below ground state.. wich would make 40,000 volts....
I know that normally , in your house for example , the 240 volts is caused by a oltage difference of 240 volts , 120-(-120) volts= 240 volts
But this is an opposing bifilar wound coil , not like the *neogen crux_wfc* bifilar hookup that kevin west uses , wich aids the voltage ...