Zvinoenderana nezvinodiwa zvedunhu, sarudza nzira yemhepo:
Paunenge uchitenderedza coil yekuchaja isina waya, zvinodikanwa kuti uone nzira yekutenderedza zvinoenderana nezvinodiwa netambo yekuchaja isina waya, saizi yecoil inductance uye saizi yecoil, wobva wagadzira mold yakanaka.Wireless kuchaja makoiri ane ronda 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.