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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. 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...

  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. ... 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 ...

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

  6. 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

  7. 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...

  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. [ Bulb burnt out] means the bulb has been burnt because...it. It will then be broken down and will not give out light any more. [ Bulb short circuit] means the bulb has been by-passed, i.e...

  10. 鎢絲燈泡冇分正負極。 應該係固定燈泡的 燈杯 所影響,燈杯尾部旁邊有圓型塑料的凸邊,中間係金屬物,通常係一個銅製的雞眼,提供燈泡和電池的導電功用。 由於電池正極為一凸起的圓點頭,可以同燈杯的金屬物雞眼接觸。 相反電池負極係平的,被燈杯的圓型塑料凸邊頂著,接觸不...

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