Question

giúp e vs ạaa

Answer 1

\(R=\dfrac{U}{I}=\dfrac{12}{0,3}=40\Omega\)

Ta có: \(R'=\dfrac{3}{2}R=\dfrac{3}{2}\cdot40=60\Omega\)

\(\Rightarrow I'=\dfrac{U}{R'}=\dfrac{12}{60}=0,2A\)