Kuti mudyetse kudzera mu mphamvu, chizindikiro, ndipo deta ndiyofunikira kwambiri mu eyantric engectriction engineering. Zinthu zolimbitsa thupi, dongosolo lolumikizirana ndi kapangidwe ka mabatani otchinga ndi mawonekedwe osiyana. Chowonera kudzera mu gawo lokhala ndi malire ndioyenera kujowina komanso / kapena kulumikiza kamodzi kapena zingapo. Amatha kukhala ndi magawo amodzi kapena angapo olumikizana omwe ali pa kuthekera komweko kapena kufalitsana wina ndi mnzake.