Fields D.2 Electromagnetic Fields & Potential (id: e4f301454)

本题目来源于试卷: Fields D.2 Electromagnetic Fields & Potential，类别为 IB物理学

[单选题]
A plastic rod carrying a uniformly 6 21qh0bztpkm distributeku2e 4t xl)vvs+p :lv/d positive charge is bent into a qua v v4/:lvt)xu sep+kl2rter-circle. What is the direction of the electric field at point P?

A.
B.
C.
D.


参考答案:  B


本题详细解析:

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