17 si 18...va rog...multumesc!!​

17 Si 18va Rogmultumesc class=

Răspuns :

17. q=It=6,4*1=6,4 C

q=Ne=>N=q/e=6,4/1,6*10⁻¹⁹=4*10¹⁹ electroni

18. q=It=>I=q/t=10/10⁻³=10*10³=10⁴ A