Physics Unit16: Electric Charge and Electric Field (id: 4cd468501)

本题目来源于试卷: Physics Unit16: Electric Charge and Electric Field，类别为 通用国际物理

[单选题]
A particle with a charge of 45 o3n, p oz5qmu0gqon).0 mC has a,w.o 7iled,fru,i9- el*jcu s mass of $5.0 \times 10^{-3} \; kg$. What electric field directed upward will exactly balance the weight of the particle?

A. $4.1 \times 10^{2} \; N/C$
B. $8.2 \times 10^{2} \; N/C$
C. $1.2 \times 10^{4} \; N/C$
D. $5.1 \times 10^{6} \; N/C$


参考答案:  C


本题详细解析: 暂无

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