如图15所示，调节可变电阻R的阻值，使电压表V的示数增大△U，在这个过程中_刷题宝

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如图15所示，调节可变电阻R的阻值，使电压表V的示数增大△U，在这个过程中

A：通过电阻R₁的电流增加，增加量一定大于△U/R₁

B：电阻R₂两端的电压减小，减少量一定等于△U

C：通过电阻R₂的电流减小，但减少量一定小于△U/R₂

D：路端电压增加，增加量一定等于△U

上一题下一题 0.0难度选择题更新时间:2017-09-23 07:26:30

答案(点此获取答案解析）

C

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选择合适的答案

①Did they go home by bike ? ____

②Where did you go yesterday ? ____

③What did you see ? ____

④ Did you see a bus yesterday ? ____

⑤ When did your father come back ? ____

⑥ Do you live in London, too ? ____

⑦Did John eat rice yesterday ? ____

⑧How did you go home yesterday ?____

⑨When did you come back ? ____

⑩What did she do yesterday ? ____

A No, I didn’t. B Yes, he did . C I went to the park . D Yes, I do .

E I came back last Friday. F No , they didn’t. G We went home by bus .

H I saw lots of places . I She watched TV. J He came back last Sunday.

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