本题目来源于试卷: Physics Unit17: Electric Potential，类别为 国际高中通用物理
[单选题]
Four charges of equal charge +5pp; ihbw*gu: q are placec8jr)nv jr p0 4-d5lwkwa(v6i d at the corners of a rectangle of sides a and b. What is the potential at the center of the rectangle if -4k 8dnjcpv i0 lwav5)r6rwj(q = 2.0 mC, a = 3.0 cm, and b = 4.0 cm?
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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