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  1. Fluorescent light bulbs (including compact fluorescents) are more energy-efficient than...lot of the energy used to create the heat that lights an incandescent bulb is wasted. A fluorescent bulb , on the other hand, contains...

    分類:科學及數學 > 化學 2007年12月23日

  2. ... voltage, more and more etectrical energy is pushed into the bulb , the wire in the bulb will be heat up, when the heat increases, the wire ...

  3. Bulb means: 1. almost round, thick, underground stern, sending roots... upwards, of such plants as the lily, onion, tulip. 2. sth like a bulb in shape, esp an electric lamp or swollen end of a glass tube, eg in a thermometer...

  4. you have no figure to show how the bulbs are connecting, assume 1 bulb connect serially to 2 bulbs which.../1.5R)2R = 4/9(V2/R), the power of each parallel bulb is, (V/3R)2R=1/9(V2/R), when one of the...

  5. Light bulb .It is one kind of penetration circular telegram, (modern age usually for tungsten...silk thread to incandescent, uses for lamp which shines. The light bulb periphery by the glass make, maintains the filament at the vacuum, or under low...

  6. The brightness of the original bulb will not be changed. It is because by adding another bulb ...

  7. Filament bulb turns most of the electrical energy to heat instead of light, so most of the energy... more electrical energy to light, so the efficiency of energy-saving fluroscent bulb is higher than that of the filament bulb .

    分類:科學及數學 > 化學 2010年02月15日

  8. ... contain the phrases. http://hk.search.yahoo.com/search?p=proverbial+light+ bulb &fr=FP-tab-web-t&ei=UTF-8&meta=rst%3Dhk...

  9. Connect a rheostat in series with the light bulb and battery. By adjusting the resistance of the rheostat, the current that flows through the light bulb could be varied, and which gives different brightness.

  10. 係咪即係想要 Stephy 首歌 "電燈膽" 的歌詞呀? 【電燈膽】 歌手:鄧麗欣 作曲:李峻一 填詞:李峻一 編曲:Johnny Yim 假使不能公開妒忌 學習大方接受 同行時要殿後 誰冷落舊朋友 節日約我三位一體的慶祝 沿途明亮燈飾閃映著沉重 言談...

    分類:電視 > 其他 - 電視 2007年05月08日

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