Particulate Nature of Matter B.5 Electric Circuits (id: aff4b5855)

本题目来源于试卷: Particulate Nature of Matter B.5 Electric Circuits，类别为 IB物理学

[单选题]
An electric circuit is connected as sho; ;tpdw,jthap)p3 nd:wn. A)qjsh 5mrbf5wd (t ).sn electric current of $2\,A$ flows through the electric cell with an internal resistance $r$


What is the value for $r $?

A. 1$Ω$
B. 2$Ω$
C. 0.5$Ω$
D. 0.25$Ω$


参考答案:  A


本题详细解析:

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