本题目来源于试卷: gc textbook chapter 17 Electric Potential，类别为 通用国际物理
[问答题]
Is there a point along the line joining two equal positive charges where thnj8xxe *ak;.b)1y:hx m6+ nui vztl2ne electric field is zero? Where the electric potentia16iy z)munn+th l :2xvl is zero? Explain.
参考答案:
The electric field is zero
at the midpoint of the line segment joining the two equal positive
charges. The electric field due to each
charge is of the same magnitude at that location, because the location is
equidistant from both charges, but the two fields are in the opposite
direction. Thus the net electric field
is zero there. The electric potential is
never zero along that line, except at infinity.
The electric potential due to each charge is positive, and so the total
potential, which is the algebraic sum of the two potentials, is always
positive.
本题详细解析:
暂无
| 
