Question

Sa se calculeze Nr de sarcini elementare ce străbat canalul unui trăsnet de 59 kiloamperi, care durează 3*10puterea-7 sec.Se da sarcina elementara 1,6*10la puterea -19 clombi.

Answer 1

$\text{Se da:}\\ I=59\ kA=59\cdot 10^3\ A\\ t=3,9\cdot 10^{-7}\ s\\ e=1,6\cdot 10^{-19}\ C\\ \text{Stim ca:}\\ \boxed{I=\dfrac{q}{t}=\dfrac{N\cdot e}{t}}\\ \text{Prin urmare:}\\ N=\dfrac{t\cdot I}{e}\\ N=\dfrac{3,9\cdot 10^{-7}\cdot 59\cdot 10^4}{1,6\cdot 10^{-19}}=14381,25\cdot 10^{14}$