本题目来源于试卷: Physics Unit17: Electric Potential，类别为 通用国际物理
[单选题]
A 5.0-nC charge is at (0, 0) and n2e4 dsxv4v*w 9gprd8 a -2.0-nC charge is at (3.0 m, 38gfy vjmf7dtlq0t+2 0). If the potential is tfmtj02tl+v3 dy7 8qf gaken to be zero at infinity, what is the 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
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