P
phanhoanggood


Cho mạch R,L
$\left\{\begin{matrix}u=120cos(100 \pi t+\frac{\pi}{3})\\i=2cos(100{\pi}t) \end{matrix}\right.$
Tính [TEX]U_L[/TEX]; R ; [TEX]U_{LR}[/TEX]
$\left\{\begin{matrix}u=120cos(100 \pi t+\frac{\pi}{3})\\i=2cos(100{\pi}t) \end{matrix}\right.$
Tính [TEX]U_L[/TEX]; R ; [TEX]U_{LR}[/TEX]