Koloi e ncha e tjhajang lithapo tse nang le matla a maholo, koloi e ncha ea matla e tjhajang lithapo tsa motlakase tse matla haholo, betri e ncha ea koloi e pakelang lithapo tse matla haholo, khokahanyo e ncha ea betri ea koloi e nang le matla a phahameng a voltage, e loketseng ho ajoa ka har'a lebokose la kabo ea matla, ho fetisa matla a motlakase, ho sireletsa tšitiso ea matšoao a kantle, jj.