Question

TEMA:1. Ce sarcina electrica traverseaza filamentul unui bec intr-o
secunda daca l=320mA (1p)
2. Cati electroni traverseaza filamentul intr-o secunda?(1p)​

Answer 1

Explicație:

a) I=320mA=0,32A

I=q/t=>0,32=q/1=>q=I*t=0,32*1=0,32C

b) q=n*e

e=1,6*10^-19

n=q/e=0,32/1,6*10^-19=0,2*10^19