题干

如图所示是电阻甲和乙的U﹣I图象,下列说法中正确的是(   )

A:电阻甲和乙都是阻值不变的电阻

B:当乙两端电压为2V时,R=10Ω

C:甲、乙串联在电路中,当电路电流为0.2A时,电源电压为3V

D:甲、乙并联在电路中,当电源电压为2V时,电路总功率为1.2W

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答案(点此获取答案解析)

B,C,D

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Thursday.27th October

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