questions, coil ,pulse induction???

[carlrod49]

more OHM, COIL, reduces the depth? or increases? less OHM, reduces or increases, the depth of detection? has something to do, more or less ,OHM, with the stability in the detector, with sensitivity maxima? or not?
and on: uh, if not exactly equal to the coil of origin makes a difference in, decrease or increase the depth of detection? uH+ or - uH?
THANK-YOU,FRIEND,S