电路章节练习(2020.06.06)

A.U_a＞U_b＞U_c
B.U_c＞U_b＞U_a
C.U_b＞U_c＞U_a
D.U_b＞U_a＞U_c

A.P=UI
B.P=I²∣Z∣
C.P=U²/∣Z∣
D.P=I²R

A.i₁超前i₂30°
B.i₁滞后i₂30°
C.i₁超前i₂150°
D.i₁滞后i₂150°

A.1A
B.2A
C.3A

A.电阻和电压源的串联
B.电导和电流源的串联
C.电阻