Akuyona into enikeziwe; umphumela uncike kakhulu kufomula yesibhamu kanye namandla kagesi akhiqiza izinhlansi zikagesi.
Isibhamu asibaswa yi-voltage ngokwayo kodwa yizinhlansi ezikhiqizwa ngesikhathi sokuphuma.. Ukwenyuka kwe-voltage noma i-current kungaholela enanini elikhulu lezinhlansi.