Fields D.2 Electromagnetic Fields & Potential (id: 3ed19a698)

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

[单选题]
Four point charges are placpq1h2lj6wtv x 3t0ll0ji+ m)bed as shown on the 2h :tq ;lvq*v5f lo h2n3-sjnak/ kj4bcorners of a square. Charges of +2Q and −Q, and unknown col 2q4q3s2-h; knjkjvvl :*ftabnh5/harges A and B are located as shown on the diagram.

At the center of the square, the total potential is zero, but the resultant electric field is not zero.
Which of the following is a possible combination for the charges A and B?

A. A is +2Q ; B is -3Q
B. A is +2Q ; B is -Q
C. A is -Q ; B is +2Q
D. A is +2Q ; B is +Q


参考答案:  A


本题详细解析:

微信扫一扫，分享更方便