Question

mi ajuda ai .....................física

Answer 1

Prezado.

1.

$n= 4.10 ^{7} \\ e= 1,6.10 ^{-19} C \\ Q= ?$

Então:

$Q= n*e \\ \\ Q= 4.10 ^{7} *1,6.10 ^{-19} \\ \boxed{\boxed{Q= 6,4.10 ^{-12} C}}}$

2.

$U= 110 V \\ i= 2. 10^{-6} A \\ P= ?$

$P= U*i \\ P= 1,1.10 ^{2} *2.10 ^{-6} \\ \boxed{\boxed{P= 2,2.10 ^{-4} W}}$

Obs.: Qualquer dúvida me consulte.