本题目来源于试卷: Electrostatic Force and Electric Field，类别为 美国物理杯赛(Physics Bowl)
[单选题]
96.34: A point charge +q is placed b-7o di4w9mykm9g6 rjecud 7jhe+ 7bxxc+ r6)midway between two point charges +3q and -q separated by a distance 2d. If Coulomb’s constant is k, the 6 jcd+) u7 hxr7xb+ceemagnitude of the force on the charge +q is:
A. $\frac{2kq^{2}}{d^{2}}$
B. $\frac{4kq^{2}}{d^{2}}$
C. $\frac{6kq^{2}}{d^{2}}$
D. $\frac{8kq^{2}}{d^{2}}$
E. $\frac{10kq^{2}}{d^{2}}$
参考答案: B
本题详细解析:
暂无
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