Question

Exercitiile 1, 2 si 3, fara 4 si 5, va rog frumos.
A nu se lua in considerare inscrierile

Answer 1

1. I=600 mA=0,6 A

t=5 min=300 s

Q=It=0,6*300=1800 C

2.I=400 mA=0,4 A

t=25 min=1500 s

Q=It=0,4*1500=600 C

Q=Ne=>N=Q/e=600/1,25*10⁻¹⁹=4,8*10²¹ electroni

3.t=2 h=6400 s

Q=It=>I=Q/t=1800/6400=0,28 A