Zvinoenderana nezvinodiwa zvedunhu, sarudza nzira yemhepo:
Paunenge uchipepeta coil yekuchaja isina waya, zvinodikanwa kuti uone nzira yekutenderedza zvinoenderana nezvinodiwa zvewaya isina waya yekuchaja mudziyo wedunhu, saizi yecoil inductance uye saizi yecoil, wozogadzira yakanaka mold.Wireless kuchaja makoiri ane maronda kubva mukati kuenda kunze, saka tanga waona saizi yedhayamita yemukati.Wobva waona huwandu hwematanho, kureba, uye dhayamita rekunze kwecoil zvinoenderana nezvinhu zvakaita se inductance uye kuramba.