基本電學 - 考試
By Kama
at 2013-04-26T19:45
at 2013-04-26T19:45
Table of Contents
1.將100V的電壓加在一個60W燈泡上時,可得到250mA的電流,試問該燈泡的電阻是多少??
2.一個2V,20安培的電池,可以供應一個1.2W的燈幾小時??
請問各位版友能幫忙解出來嗎??
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2.一個2V,20安培的電池,可以供應一個1.2W的燈幾小時??
請問各位版友能幫忙解出來嗎??
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考試
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