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]
A 5.0-nC charge is at (0 9q2atrluiufoik .tr/ v5 ::0h, 0jcxgg gg1(.:k) and a -2.0-nC charge is at (3.0 m, 0). If the potential is taken to be zero at infinity, what is tgc g:kx 1(gg.jhe work required to bring a 1.0-nC charge from infinity to point (0, 4.0 m)?
A. $1.5 \times 10^{-8} \; J$
B. $3.6 \times 10^{-9} \; J$
C. $1.1 \times 10^{-8} \; J$
D. $7.7 \times 10^{-9} \; J$
参考答案: D
本题详细解析:
暂无
| 
