A、电路中的电流为0.6A
B、电阻R2的阻值为20Ω
C、三只电阻两端的总电压为21V
D、电阻R3消耗的电功率为3.6W
更多“电阻R<sub>1</sub>、R<sub>2</sub>、R<sub>3</sub>串联在电路中。已知R<sub>1</sub>=10Ω、R<sub>3</sub>=5Ω，R<sub>1</sub>两端的电压为6V，R<sub>2</sub>两端的电压为12V，则（）”相关的问题
A、（R<sub>1sub>+R<sub>2sub>）/R<sub>1sub>R<sub>2sub> B、R<sub>1sub>R<sub>2sub>/（R<sub>1sub>+R<sub>2sub>） C、R<sub>1sub>+R<sub>2sub> D、R<sub>1sub>R<sub>2sub>
A、R<sub>1sub>与R<sub>3sub>串联后与R<sub>2sub>并联 B、R<sub>1sub>与R<sub>3sub>并联后与R<sub>2sub>串联 C、R<sub>1sub>与R<sub>2sub>并联后与R<sub>3sub>串联 D、R<sub>1sub>与R<sub>2sub>串联后与R<sub>3sub>并联
A、R<sub>0sub>、R<sub>50sub>；R<sub>0sub>、R<sub>100sub> B、R<sub>0sub>、R<sub>100sub>；R<sub>100sub>/R<sub>0sub> C、R<sub>100sub>/R<sub>0sub>；R<sub>0sub>/R<sub>100sub> D、R<sub>0sub>/R<sub>100sub>；R<sub>0sub>、R<sub>50sub>
A、r<sub>1sub>＝r<sub>2sub>＝0，L<sub>1sub>＝L<sub>2sub>＝M＝0 B、r<sub>1sub>＝r<sub>2sub>＝0，L<sub>1sub>＝L<sub>2sub>＝M＝∞ C、r<sub>1sub>＝r<sub>2sub>＝∞，L<sub>1sub>＝L<sub>2sub>＝M＝0 D、r<sub>1sub>＝r<sub>2sub>＝∞，L<sub>1sub>＝L<sub>2sub>＝M＝∞
A、如图所示为电桥电路，已知R<sub>1sub>=1Ω、R<sub>2sub>=2Ω、R<sub>3sub>=2Ω、R<sub>4sub>=4Ω、R<sub>5sub>=5Ω，试求等效电阻R<sub>absub>。rc="https://img.ppkao.com/2018-05/tangxueping/2018051015543465216.jpg" />
A、集电极电阻R<sub>Csub>阻值 B、集电极电阻R<sub>Csub>阻值和负载电阻R<sub>Zsub>阻值 C、负载电阻R<sub>Zsub>阻值 D、集电极电阻R<sub>Csub>阻值和负载电阻R<sub>Zsub>阻值之和
A、已知电路如图所示，其中E<sub>1sub>=15V，E<sub>2sub>=65V，R<sub>1sub>=5Ω，R<sub>2sub>=R<sub>3sub>=10Ω。试用支路电流法求R<sub>1sub>、R<sub>2sub>和R<sub>3sub>三个电阻上的电压。rc="https://img.ppkao.com/2018-09/tangxueping/2018092817031193342.jpg" />
A、R<sub>1sub>＞R<sub>2sub>＞R<sub>3sub> B、R<sub>1sub>＜R<sub>2sub>＜R<sub>3sub> C、R<sub>1sub>＞R<sub>3sub>＞R<sub>2sub> D、R<sub>3sub>＞R<sub>1sub>＞R<sub>2sub>
A、R<sub>1sub>＞R<sub>2sub>＞R<sub>3sub> B、R<sub>1sub>＜R<sub>2sub>＜R<sub>3sub> C、R<sub>1sub>＞R<sub>3sub>＞R<sub>2sub> D、R<sub>2sub>＞R<sub>1sub>＞R<sub>3sub>
A、R<sub>1sub>烧坏，R<sub>2sub>不会烧坏 B、R<sub>1sub>、R<sub>2sub>均烧坏 C、R<sub>1sub>未烧坏，R<sub>2sub>烧坏 D、R<sub>1sub>、R<sub>2sub>均未烧坏
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