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第18章 範例17 180303
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電學
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Joanne Wu
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Jun 18, 2013, 7:57:32 PM
6/18/13
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to feynm...@googlegroups.com
請問要看燈泡的亮度,是要看該燈泡的功率是嗎?
不能只看通過的電流嗎?
謝謝!
討論區板主
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Jun 26, 2013, 10:36:13 AM
6/26/13
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您好:
不好意思,因近日事忙晚回覆了...
看燈泡的亮度,是要看該燈泡的功率
相同的燈泡,可以只比電流的原因,是因為:電阻相同時,則電流越大=>燈泡消耗功率越大
Joanne Wu於 2013年6月19日星期三UTC+8上午7時57分32秒寫道:
請問要看燈泡的亮度,是要看該燈泡的功率是嗎?
不能只看通過的電流嗎?
謝謝!
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