本题目来源于试卷: Electric Charge and Electric Field，类别为 IB物理学
[问答题]
Explain why the test charges we u -pe qh3u 3bu.owhlc*5se when measu7.4xh2h8 sv y.qki am2/ochuzring electric fields must be small. hao2hc4m/v8xi7.q hs2 zu.k y
参考答案:
The test charge creates its
own electric field, and so the measured electric field is the sum of the
original electric field plus the field of the test charge. By making the test charge small, the field
that it causes is small, and so the actual measured electric field is not much
different than the original field to measure.
本题详细解析:
暂无
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