本题目来源于试卷: gc textbook chapter 16 Electric Charge and Electric Field，类别为 通用国际物理
[问答题]
Contrast the net charge on a conductorhppyqa, a5dr+s: 4*h v ;:z v*xbebpo4c ,ea.p9*umatto the “free charges” in the conductor.
参考答案: The net charge on the conductor is
the unbalanced charge, or excess charge after neutrality has been
established. The net charge is the sum
of all of the positive and negative charges in the conductor. If a neutral conductor has extra electrons
added to it, then the net charge is negative.
If a neutral conductor has electrons removed from it, then the net
charge is positive. If a neutral conductor
has the same amount of positive and negative charge, then the net charge is
zero.
Free
charges in a conductor refer to those electrons (usually 1 or 2 per atom) that
are so loosely attracted to the nucleus that they are “free” to be moved around
in the conductor by an external electric force. Neutral conductors have these
free electrons.
本题详细解析:
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