Chọn C. (1080V, 2A).
Ta có: \(\dfrac{U_2}{U_1}=\dfrac{N_2}{N_1}=3 \Rightarrow U_2=3U_1=3.360=1080(V)\)
Ta lại có: \(\dfrac{I_1}{I_2}=\dfrac{N_2}{N_1}=3 \Rightarrow I_2=\dfrac{I_1}{3}=\dfrac{6}{3}=2(A).\)
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