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  1. Fluorescent light bulbs (including compact fluorescents) are more...regular incandescent bulbs . While a regular (incandescent) light bulb uses heat to produce light , a fluorescent bulb creates...

    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. Light bulb .It is one kind of penetration circular telegram, (modern age usually for tungsten...tiny 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...

  4. ...no general relation. This actually depends on the type and design of the light bulb . The relationship between the brightness (luminous) of a light source and the power...

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

  6. ... the current over the rated current, light bulbs and LEDs may burnt out, it may be dangerous...only light concentrates in a small part of light spectrum (i.e. specified wavelength), as a result...

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

  8. Fluorescent light bulbs (including compact fluorescents) are more...incandescent bulbs . While a regular (incandescent) light bulb uses heat to produce light , a fluorescent bulb creates...

  9. In a series circuit, each light bulb only share a fraction of the voltage from the source (battery). But in a prarallel...voltage of the source (or battery), and R1 and R2 be the resistancee of the two bulbs respectively. In series arrangement, voltage of first bulb V1 = V...

  10. ...waste is serious, you can choose to use a compact fluorescent lamp instead of ordinary light bulb . Also, you can use LED( light emitting dioude, dioudes...

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