本题目来源于试卷: Electric Charge and Electric Field,类别为 IB物理学
[问答题]
Consider the electri ky/ 9van. g8gfzqv:yq+-7db+ z g ow+kc dny (xn; h1)av9, suaiav m5i; field at points A, B, and C in Fig. 16–48. First draw an arrow at each point indicating the direction of the net force that a positive test charge would experience if placed at that point, then list the points in order of dy9 a i, h1ins(;mvax;nu5)va decreasing field strength (strongest first).

参考答案: At point A, the net force
on a positive test charge would be down and to the left, parallel to the nearby
electric field lines. At point B, the
net force on a positive test charge would be up and to the right, parallel to
the nearby electric field lines. At
point C, the net force on a positive test charge would be 0. In order of decreasing field strength, the
points would be ordered A, B, C.
本题详细解析:
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