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Gaokao Physics Practice Question

2. (6 分) 关于静电场的等势面, 下列说法正确的是 $(\quad)$

  1. A.两个电势不同的等势面可能相交
  2. B.电场线与等势面处处相互垂直
  3. C.同一等势面上各点电场强度一定相等
  4. D.将一负的试探电荷从电势较高的等势面移至电势较低的等势面, 电场力做 正功

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