邊長為a的正三角形三頂點各置固定電荷+q、+q、-q,則此三角形重心處之電場強度大小為何?
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邊長為a的正三角形三頂點各置固定電荷+q、+q、-q,則此三角形重心處之電場強度大小為何?
Posted in 電場與電力線.
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By admin – 2010 年 03 月 01 日
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