本题目来源于试卷: Physics Unit17: Electric Potential，类别为 通用国际物理
[单选题]
Four charges of equal charge +q are placed at the corners of a re9g.muwu 5i cn1ctangle of sidei1c uu.ng9wm5fkxq48- e/7wiz3 bd0. so jryzs a and b. What is the potential at the center of the rectangle if q = 2.0 mC, a = 3.0 cm, and b = 4.0 cmwb y48/xifeqs. r0z-7d3z j ok?
A. $1.3 \times 10^{6} \; V$
B. $2.9 \times 10^{6} \; V$
C. $3.5 \times 10^{6} \; V$
D. $7.8 \times 10^{6} \; V$
参考答案: B
本题详细解析:
暂无
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