Particulate Nature of Matter B.5 Electric Circuits (id: 4cf84afda)

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]
In the circuits below, all a0bzg2ng.: mc.e4 otvresistors have the same reswqr2m+tbg9 lpspb09 (istance, and the cells do not have internabm(s pb p2t+gl90 w9qrl resistance. The emf of the cell in circuit 1 is $E_1$​ while it is $E_2$​ in circuit 2.


All resistors dissipate the same power. Which of the following gives the ratio $\frac{E_1}{E_2}$

A. 2
B. 1
C. $\frac{1}{2}$
D. $\frac{1}{4}$


参考答案:  A


本题详细解析:

微信扫一扫，分享更方便