Question

Giúp vs ặ :)

Answer 1

\(R_Đ=\dfrac{U^2_Đ}{P_Đ}=\dfrac{12^2}{6}=24\Omega\)

\(R_{12}=\dfrac{R_1\cdot R_2}{R_1+R_2}=\dfrac{20\cdot20}{20+20}=10\Omega\)

\(R_{tđ}=R_Đ+R_{12}=24+10=34\Omega\)

\(I_A=I_m=\dfrac{U_m}{R_{tđ}}=\dfrac{15}{34}=0,44A\)