Question

Puțin ajutor la problema 4!

Answer 1

$I=20 = mA=0,02 \ A \\ U=6 \ V \\ \boxed{R-?} \\ \bold{Rezolvare:} \\ \boxed{I=\frac{U}{R}} \\ R=\frac{U}{I}=\frac{6 \ V}{0,02 \ A} \\ \Rightarrow \boxed{\bold{R=300 \ \Omega}}$