Yahoo奇摩 網頁搜尋

  1. bulb 相關
    廣告
  1. ... have a gleaming display. Mounted with lights and bulbs as bright as day. It's lovely 'cause though winter lacks color...

  2. ...read an article about electric last night. The (a).____invention_____________of light bulbs has greatly improved out lives.Today, we can choose...

  3. ... invented more than 2,000 electrical appliances. e.g. light bulb Before the light bulb was invented, we had to use...

  4. phy mc 二個电灯泡規定值& A和B; lsquo; 10 W, 6 V& rsquo; 並且& lsquo; 5 W, 6 V& rsquo; 在系列分別被連接到6 V 電池。 正確是哪些以下聲明? (1) A抵抗小于那B。 (2)潮流通过A是相同的象那通过B。 (3)比...

  5. 每個燈泡的電阻=V2 /P =2202 /30 =1613 ohm 當三個燈泡串聯連接至220V電源時, 每個燈泡的電勢差=220 /3 V 總功率消耗=3 x [(220 / 3)2 /1613]=10W

  6. ...great help of environmental' issies. It can replace one regular light bulb with a compact fluorescent light. In this way; the carbon dioxide can be save 15...

  7. ...點解係correct? 呢條個ans 係: D (1) S closed but voltage of bulb P does not change, ie no change brightness of bulb P. (1) ...

  8. ... depends on the power dissipated by the light bulb P. To obtain the maximum brightness, we have to maximize the current through bulb ...

  9. Resistance of the 220 V bulb , Ra = Va^2 / Pa = (220)^2 / 60 = 806.67 ohm Resistance...

  10. Length of mercury thread changes in direct proportion to the liquid temperature. Melting Ice = 0 deg C Steam = 100 deg C Let y be the temperature of the liquid: (y-0)/(100-0)= (12-30)/(180-30) therefore y = -12 deg C or Answer is...

  1. bulb 相關
    廣告