Question

Giúp mình với cần gấp ạ

Answer 1

\(R=R1+R2=240+200=440\Omega\)

\(I=I1=I2=U:R=220:440=0,5A\left(R1ntR2\right)\)

\(\rightarrow U1=I1\cdot R1=0,5\cdot240=120V\)

Answer 2

\(1,R_{td}=R_1+R_2=440\Omega\\ 2,I=\dfrac{U_{td}}{R_{td}}=\dfrac{220}{440}=0,5A\\ \Rightarrow I_1=I_2=I=0,5A\\ \Rightarrow\left\{{}\begin{matrix}U_1=R_1\cdot I_1=120V\\U_2=R_2\cdot I_2=100V\end{matrix}\right.\)