Question

Giúp em với ạ em đang cần gấp

Answer 1

\(\dfrac{I_1}{I_2}=\dfrac{U_1}{U_2}\Rightarrow U_2=\dfrac{U_1.I_2}{I_1}=\dfrac{12.\left(0,3+0,6\right)}{0,3}=36\left(V\right)\)

=> Chọn B

Answer 2

\(\dfrac{U1}{U2}=\dfrac{I1}{I2}\Rightarrow U2=\dfrac{I2\cdot U1}{I1}=\dfrac{\left(0,3+0,6\right)\cdot12}{0,3}=36V\)

Chọn B

Answer 3

\(\dfrac{I}{I'}=\dfrac{U}{U'}\Rightarrow U'=\dfrac{U\cdot I'}{I}=\dfrac{12\cdot\left(0,3+0,6\right)}{0,3}=36\) (V)

 Chon B

Answer 4

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