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01.电流和电路（一）...mp4 | 2024-07-01 17:57:55 | 393.97 MB | |
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02.电流和电路（二）...mp4 | 2024-07-01 17:57:55 | 355.85 MB | |
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03.电流的强弱...mp4 | 2024-07-01 17:57:55 | 325.45 MB | |
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04.电压（U）...mp4 | 2024-07-01 17:57:55 | 381.55 MB | |
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05.电阻...mp4 | 2024-07-01 17:57:55 | 407.83 MB | |
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06.变阻器...mp4 | 2024-07-01 17:57:55 | 370.81 MB | |
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07.串联和并联...mp4 | 2024-07-01 17:57:55 | 359.56 MB | |
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08.串联与并联的判断与应用...mp4 | 2024-07-01 17:57:55 | 354.18 MB | |
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09.电流与电压、电阻的关系...mp4 | 2024-07-01 17:57:55 | 470.49 MB | |
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10.欧姆定律及其应用...mp4 | 2024-07-01 17:57:55 | 357.38 MB | |
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11.欧姆定律在串联电路中的应用...mp4 | 2024-07-01 17:57:55 | 325.7 MB | |
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12.欧姆定律在并联电路中的应用...mp4 | 2024-07-01 17:57:55 | 348.7 MB | |
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13.电能...mp4 | 2024-07-01 17:57:55 | 373.49 MB | |
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14.电能与电功...mp4 | 2024-07-01 17:57:55 | 346.22 MB | |
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15.电功率...mp4 | 2024-07-01 17:57:55 | 412.55 MB | |
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16.电功率的计算...mp4 | 2024-07-01 17:57:55 | 397.35 MB | |
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17.电和热...mp4 | 2024-07-01 17:57:55 | 523.05 MB | |
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18.电功率与安全用电...mp4 | 2024-07-01 17:57:55 | 334.93 MB | |
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19.生活用电常识...mp4 | 2024-07-01 17:57:55 | 326.96 MB | |
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20.磁现象...mp4 | 2024-07-01 17:57:55 | 459.55 MB | |
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21.磁场...mp4 | 2024-07-01 17:57:55 | 434.46 MB | |
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22.电磁铁...mp4 | 2024-07-01 17:57:55 | 415.97 MB | |
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23.电磁继电器与扬声器...mp4 | 2024-07-01 17:57:55 | 325.07 MB | |
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24.电动机...mp4 | 2024-07-01 17:57:55 | 387.04 MB | |
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25.发电机...mp4 | 2024-07-01 17:57:55 | 382.51 MB | |
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26.信息的传递...mp4 | 2024-07-01 17:57:55 | 345.8 MB | |
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27.广播、电视和移动通信...mp4 | 2024-07-01 17:57:55 | 314.61 MB | |
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28.多彩的物质世界宇宙和微观世界...mp4 | 2024-07-01 17:57:55 | 315.86 MB |